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2020-07 27 Important News

[Academics][Researcher of the Month] Customizing Breast Cancer Treatment through Big Data

In 2015, Professor Kong Gu (College of Medicine) was a pioneer in the field of breast cancer research and treatment, laying the foundation for web-based precision by mapping 560 breast cancer whole-genome sequences. Kong is now developing a screening system for breast cancer with multiomics and big data, paving the way for customization and personalized breast cancer treatment. Professor Kong Gu (College of Medicine) developed a target gene screening system for the diagnosis and treatment of breast cancer. Breast cancer is one of the most common types of cancer among women, causing death to 1 out of 38 women. The cancer is classified into three subtypes, which are Estrogen Receptor (ER) positive, HER2 positive, and triple-negative. The latter two – which make up fewer than 30 percent of all cases – usually have bad prognoses. Through this research project, Kong sought to find the target gene of malignant tumors through multiomics. Multiomics is a new approach where the data sets of different omic groups, such as the genome, proteome, and transcriptome, are combined during analysis. By unpacking 41 data sets from METABRIC, TCGA, and GEO, Kong made a target gene screening system that allows researchers to customize the treatment of potential patients. “It is a platform to provide the individualized surgical target with data visualization,” explained the professor. Data visualization, survival analysis, and target gene screening are three main points in this research. (Photo courtesy of Kong) Kong, who is one of the first Korean scholars to introduce the polymerase chain reaction (PCR) test, said it was a challenge for him to conduct this research. “Most of what I have studied as a researcher was on biotechnology(BT),” said Kong. The latest research, however, involved informational technology (IT). He said a lot of help was given to him from Kim Hyung Yong, a Ph.D. candidate who majored in bioinformatics for his master’s degree. Kong tried to learn IT himself, as well as to pass his knowledge of breast cancer on to his doctoral student. “It was an opportunity to remind me that the path of learning is long and winding," recalled Kong. Kong said it was definitely a challenge to encounter informational technology (IT) in his research. Kong advised the members of Hanyang to be engrossed in their path. “Stay focused on your interests with constant effort,” advised the professor. “You will eventually become an expert in the field.” Oh Kyu-jin alex684@hanyang.ac.kr

2020-07 26 Important News

[Academics][Excellent R&D] How to Ensure Structural Safety During Remodeling

Professor Choi Chang-sik (Department of Architectural Engineering) has developed the technology to ensure structural safety when vertically extending buildings. Unlike previous methods, Choi's method strengthens the existing wall structure without adding to or thickening of the walls; thus, it does not reduce the floor space. Out of all residential premises in South Korea, 55 percent are more than 30 years old (figure from 2018). When a building is decrepit, it can either be demolished and reconstructed or partly remodeled. Choi's research aims to deal with problems that arise while remodeling, especially when doing a vertical extension. Professor Choi-Chang-sik (Department of Architectural Engineering) is explaining the reason why shear walls are important when extending a building. To increase the number of floors of a building, many aspects must be considered. These include the vertical weight that will be put on the walls and pillars, horizontal weight which is related to wind and earthquakes, as well as the flexural strength. The taller the building, the more stress is put on the importance of the horizontal weight and flexural strength. The type of wall that is designed to support these two factors is called a shear wall. Choi's method of strengthening sheer walls differs from the previous adhesion-type method in that it does not thicken the walls or increase the number of walls. He first calculates the necessary thickness of the stiffener and cuts out the same size area from the existing wall structure. The stiffener is then applied onto the vacant area. This method gives the advantage that it will not reduce the actual floor space of the living area. Choi explained that the team has successfully finished the technology development as well as completed testing on real-scale structures. The only thing left is to test it on an actual building. "We are currently facing difficulties because there are not many complexes that are willing to try out the new technology. Furthermore, apartments in general do not prefer remodeling over reconstruction, so it is very hard to find an apartment to apply our method on," said Choi. “People feel vague anxiety about reusing an old structure as the base. However, remodeling involves as much technical verification as reconstruction. I hope people can trust the safety of our remodeling method." Hwang Hee-won whitewon99@hanyang.ac.kr

2020-07 22

[Academics]Professor Lee Young-moon Creates an Application that Prevents Smartphones Shutting Down in Cold Weather

Professor Lee Young-moon's team of professors from the department of Robotics at Hanyang University created a technology that prevents smartphones from turning off in cold weather, reported Hanyang Univerisity on the 15th. Older smartphones turn off in cold weather more frequently causing extreme inconvenience to the users. The solution to this problem has become a big interest in the mobile industry. Professor Lee Young-moon Initially, the system in smartphones minimizes the usage of electricity at high temperatures while maximizing electricity usage at low temperatures to prevent heating issues. However, at low temperatures, the internal resistance of the battery increases rapidly. This, along with an increase in electricity usage, causes the battery supply to drop quickly. This results in the smartphone turning off. Professor Lee Young-moon's team from the department of Robotics created an application called Battery-Aware Power Management (BPM), together in collaboration with Professor Shin Kang-Gun of Michigan University in the United States, which solves this problem. The joint research team improved operational stability with a smartphone application by analyzing battery capacity and controlling the decrease in battery voltage in cold environments without the use of additional equipment. After various tests by the OEM, the joint research team found out that the battery availability increased by 38%, and the operating time improved by 30% at a temperature of minus 5 degrees Celcius. This research was supported by Hanyang University (Task name: Embedded System Battery and Power Management) and the American Science Foundation. The results of the study (Paper name: Causes and Fixes of Unexpected Phone Shutoffs) was published at ACM MobuSys 2020, the most prestigious academic conference in the field of mobile systems, and presented at on open online conference (https://www.youtube.com/watch?v=L1exSp00ZJg) last month. For more information, visit [[HYUwiki]]에서 자세히 보기 : hyu.wiki/스마트폰꺼짐방지앱 Global News Team Global@hanyang.ac.kr Translation by: Lee Hee-jin

2020-07 22

[Academics]Professor Jung Jin-wook's Work Selected as the 2020 Samsung Science & Technology Foundation Research Subject

Professor Jung Jin-wook’s (Division of Electrical and Biomedical Engineering) "1 nm damage-free atomic layer etching source technology using electrons" (Disruptive semiconductor structure and realization technology) has been selected as the 2020 Samsung Science & Technology Foundation’s specified support research subject. Samsung Electronics has been supporting and developing future science technology through the contribution of 1.5 trillion won over the last 8 years as a part of the Samsung Science & Technology Foundation. The foundation selects subjects in the ICT field of basic science to support in the first and second half of each year for national research in the field of future technology through the annual Designated Theme Task Contest. This year, 12.35 billion won will be provided to 12 research subjects across six fields. The six themes selected this time were ▲Disruptive semiconductor structure and realization technology ▲Next generation spontaneous emission displays ▲Cell therapy products for curing incurable diseases ▲Source technology for the practical use of quantum computing ▲Next generation realistic media devices and processing technology ▲B5G & 6G Communication. Professor Jung is a renowned authority in the field of etching technology, which is necessary for next generation semiconductor development. Professor Jung plans to develop etching technology using electrons that do not damage the semiconductor board and clips off a semiconductor wafer to 1 nm. His goal is to create technology that enables etching large-scale electrons without silicon board damage. It is expected to enhance semiconductor efficiency, which is currently maxed out, by 1,000~10,000 times when this technology becomes commercialized. Samsung Electronics has invested a total of 771.3 billion won through the Samsung Science & Technology Foundation across 601 fields including 201 fields in basic science, 199 fields in the materials sector, and 201 fields in ICT. There have been 1,241 supported research papers published in international journals. In particular, there have been 93 papers introduced in world-class international journals such as Science (5 papers), and Nature (2 papers). Global News Team global@hanyang.ac.kr Translation by: Park Gyeong-min

2020-07 20 Important News

[Academics][Excellent R&D] Building a System for Urban Ecosystems

When engineers did urban planning in the past, the feasibility and economic efficacy that it would bring were the top priorities. Recently, however, there has been increasing attention given to environmental factors, and the research on urban ecosystems has gained popularity within the field of urban planning. Professor Oh Kyushik (Department of Urban Planning and Engineering) is building up a spatial decision support system to maintain and manage urban ecosystem services. Professor Oh Kyushik (Department of Urban Planning and Engineering) is creating a platform for the maintenance and management of urban ecosystem services. Oh’s project aims to make a platform that assists with the decision-making process of the government. “What I am trying to do is to connect developmental and environmental issues in one framework,” explained Oh. The professor presented four standards in providing ecosystem services: resilience, buffer power, carbon storage capability, and heat stress mitigation capability. Considering these four standards, Oh collected research data provided by the collaborating labs and incorporated them in a readily accessible platform with an easy-to-use interface. Oh collected research data provided by collaborating labs and incorporated them into a readily accessible platform with an easy-to-use interface. Previously, Oh has been in charge of two national-level research and development projects conducted by the Ministry of Land, Infrastructure, and Transport. However, this was his first time participating in a project conducted by the Ministry of Environment. "The two ministries have some common ground but see from different points of view,” said Oh. He said he was determined to learn and combine both standards through this project. Oh revealed his will to make his research beneficial by reflecting the views of both the Ministry of Land, Infrastructure, and Transport and the Ministry of Environment. Oh reminded the members of Hanyang to look with eyes wide open at the past, but more importantly at the future. “I feel the world is changing at a rapid pace, especially after the coronavirus outbreak,” said Oh. The professor said that the field of urban planning is changing in parallel, as it is a discipline that is deeply related to the daily life of the public. Oh advised students to keep a broad vision and to build up extensive knowledge for the future. Oh Kyu-jin alex684@hanyang.ac.kr

2020-07 20 Important News

[Academics][Researcher of the Month] Reducing Fine Dust From GDI Engines

The increasing amount of fine dust is threatening modern people’s daily lives. In response to the problem, Professor Park Sung-wook (Division of Mechanical Engineering) has been studying ways to decrease the amount of fine dust in the air while maintaining the efficiency of automobile engines. In his recent research paper titled “Effects of spray behavior and wall impingement on particulate matter emissions in a direct injection spark ignition engine equipped with a high pressure injection system,” Park presented a solution to lowering the amount of fine dust emitted by Gasoline Direct Injection (GDI) engines of gasoline-powered cars. The research focuses on spray visualization, particle number (PN) measurement experiments, injection timing, and an engine load being varied to examine their effects on the way fuel sprays move when being injected inside a combustion chamber, hereinafter referred to as the spray behavior. The analysis was based on time-averaged spray images, spray variations between cycles, combustion, and PN emission characteristics. "The motivation behind this research was the prevalent misconception that diesel cars are the main source of fine dust, when in fact gasoline cars’ GDI engines emit just as substantial an amount of fine dust," said Park. Professor Park Sung-wook (Division of Mechanical Engineering) experimented in order to help automobiles emit less fine dust. (Photo courtesy of Park) What Park considered most important in the research was the PN emission characteristics. He endeavored to find new ways to decrease PN emission in the air instead of reducing the dust's total weight. “What matters the most in reducing fine dust is the size of each dust particle," explained Park. "The combined weight of the dispersed fine dust is secondary - for the size of the particle determines its harmfulness to the human body.” After 5 years’ cooperation with Hyundai Motor Company, Hyundai KEFICO, the Ministry of Environment, and the Ministry of Industry, Park and his team have been able to conclude that when fuel is injected at a high pressure, the flow in the combustion chamber is strengthened, and the atomization of the fuel spray is propelled in action in order to decrease fine dust in the air. “This has been a significant research project during which we have found ways to decrease the amount of fine dust emitted by existing hybrid automobiles and internal combustion automobiles, without having to accelerate the commercialization of electric cars, which would be difficult to do for several more years.” Park said five great students have earned their doctorate degrees through this experiment and thanked his pupils for constantly helping him in times of distress and uncertainty. Park with his student. He thanked his students for helping him through times of uncertainty and distress. (Photo courtesy of Park) Lee Yoon-seo cipcd0909@hanyang.ac.kr

2020-07 16

[Academics]Professor Ko Min-jae's Joint Research Team Has Developed the New Perovskite Quantum Dot Solar Battery

Hanyang University's Department of Chemical Engineering Professor Ko Min-jae's team announced on July 14 that together with DGIST Department of Energy Convergence Research Center's Professor Kim Young-hoon they have developed the New Perovskite Quantum Dot Solar Battery. This technology also holds light energy electroluminescence characteristics and is expected to contribute to the commercialization of optical technologies such as building-integrated solar energy generation, multi-functional photoelectric devices, and Li-Fi. Quantum dots have great light-absorbing capacities and are one of the key elements of next-generation solar batteries, which absorb light from large areas. The perovskite quantum dot solar battery has the ability to transfer light into electric energy and electricity into light, and is known to have the highest efficiency in the quantum dot solar battery field. In order to synthesize superior perovskite quantum dots, organic ligands, which have a long hydrocarbon chain, are used. Ligands adhere to small perovskite quantum dots of 10 nanometers (nm) on the surface and allow them to disperse in diverse nonpolar solvents. When these quantum dots are well-arranged on boards, quantum dot solar batteries are created. Here, as a long-chain ligand adheres to a quantum dot’s surface, it makes the charge transfer difficult between quantum dots, a process which degenerates solar battery functions and where transfering it to the ligand chain where hydrocarbon is required. The research team focused on the hydrophobicity (not easily combine with water molecules) of benzene group-based phenethylammonium (PEA) ligands. They then succeeded in applying this safely to the perovskite quantum dot's surface. Through this, they improved the efficiency of transforming solar energy into electric power to 14.1% and additionally tried to keep high photovoltaic efficiency stability of over 90% for 15 days in an environment with relative humidity of 20~25%, which is similar to external environments. Doctor Kim Young-hoon said that “we investigated and have discovered for the first time that by applying a ligand which holds both a short hydrocarbon chain and hydrophobicity, that both a quantum dot solar battery’s performance and safety can be improved at the same time,” and that “this will provide a new paradigm for developing and commercializing a next generation quantum solar battery”. In this research, Hanyang University's Department of Chemical Engineering's master’s and doctorate program student Kim Ji-gun and the DGIST Department of Energy Convergence Research Center's post-doc participated as the lead author and was published online in Nano Energy, a world-class journal in the energy science field, on June 15. A performance and safety evaluation of a perovskite quantum dot solar battery with a short hydrophobicity ligand. (photo by: DGIST) Global News Team global@hanyang.ac.kr Translation by: Park Gyeong-min

2020-07 09

[Academics]Professor Choi Chang-hwan's Team Develops a New Material for Steel-genetics that Is Diversifiable into 3D Flash Memory Devices

Professor Choi Chang-hwan, Division of Materials Science & Engineering, and Dr. Koo Bon-cheol, a research team student, have developed a new material that can solve the high-density and low-power problems of 3D flash memory devices. This research has been highly praised for opening up the possibility of reducing flash device thickness, which is a task that must be overcome in order to continuously upgrade current 3D flash memory devices. Current 3D flash memory devices use thin-film materials consisting of oxide, nitride, and oxide (ONO) to store memory. This film has a thickness of 20 nm. 3D flash memory devices need continuous enhancement to improve their performance. However, it is difficult to reduce the thickness of existing ONO thin-film, and it is not easy to improve the speed and power of the flash element. In addition, alternative thin-film materials need to be developed due to difficulties in multi-level cells (MLCs) that can store various information in one cell. Professor Choi's team cooled an aluminum-coated substance in Hafnium oxide (HfO2), forming a new thin-film with residual polarization and an avionics field, maximizing the properties of the steel electrode. Flash memory devices with this feature are highly desirable as they can easily be repaired using improved polarizing properties. Moreover, the thin-film thickness can be implemented even if it is under 10 nm. Also, the properties of the steel-genetic have been improved as they induce a stable orthorhombic phase through high-stress deformation. Not only that, but Hafnium oxide is also a material that has been proven to be reliable in the field of logic semiconductors. Manufacturers being able to manufacture new Nand flash memory using this material without further investment is a significant benefit. This study was conducted by a team led by Professor Song Yun-heup, Department of Electronic Engineering, with the support of Samsung Electronics' Future Technology Development Center. It was introduced at a symposium on very-large-scale integration (VLSI) by the Institute of Electrical and Electronics Engineers (IEEE), a world-renowned association on semiconductors, which ran for six days starting on the 14th. In particular, this study was chosen as one of the "highlighted" theses by the technical committee and was introduced to the media, allowing it to gain the spotlight. The Symposia on VLSI Technology and Circuits, which celebrated its 40th anniversary this year, is the most prestigious conference in the field of semiconductors, along with the International Electron Device Meeting (IEDM). Annually, the conference presents the latest research on semiconductors and selects the papers that have contributed the most to semiconductor companies and academia. This year's conference was carried out online due to COVID-19 and received the most theses in 10 years. Out of the 248 papers that were received, 86 papers were selected as the most influential thesis of which only 29 papers were sponsored by universities"?). Professor Choi said, "Technology to implement strong-genetics is emerging as a trend in academia," and he added "this is the first good example that has raised the generation of Hafnium oxide material, which will be used for NAND-flash high-density integration, to nearly universal level." In addition, he mentioned that "Out of the 8 ferrogenic thin-film thesis papers that were chosen, 5 were from companies and 3 were from universities". He said, "The research team from Hanyang University was the only Korean university to have a thesis selected," and added "it is rare to present a research conducted by university without any cooperation or sponsor of enterprises. This study is expected to contribute to the development of the thin-film that can be implemented in 3D flash memory devices." AlHfO2 showing the properties of ferroelectric by quick cooling, completed by Professor Choi Chang-hwan's research team. <Origin: Hanyang University> More on [(HanyangWiki)] http://hyu.wiki/강유전체소재개발 Global News Team global@hanyang.ac.kr Translation by: Lee Hee-jin

2020-07 07

[Academics]Hanyang Intelligence Data System Laboratory Participates in a Consortium for a Digital-Platform-Based Enterprises Support

The Hanyang Intelligence Data System Laboratory of the Department of Industrial Engineering has been selected for the Digital Platform Based Private Business Proliferation Support Project (PoC) being conducted by the National Information Society Agency. The Laboratory will task with supervision and cooperation?) with Autocarz and Genieworks, tackling illegal parking on the digital platform. The project aims to solve Seoul's illegal parking problem by planning and implementing a new business model, using the base of the public consolidated platform developed by the Seoul Metropolitan Government last year. At the same time, the consortium aims to commercialize the business model planned by private enterprises. The consortium is planning to create an artificial-intelligence-based prediction probability model on illegal parking, by collecting, processing, and analyzing various data. Utilizing these data, the consortium is also planning to showcase an array of additional services by the second half of the year. One of the services is an Open API Portal Service on Parking Control Prediction Information, which designs and develops a parking control prediction probability model and provides the generated information to O2O businesspersons in an Open API form. Since the data make it possible to target when and where the number of illegal parking frequently occur, parking lot operators and others can use it as important sources for location-based marketing. Also, it could serve as baseline data for analyzing the business area regarding vehicle maintenance and car wash businesses. Mun Chang-hun, the CEO of Autocarz, mentioned that he hopes to raise awareness about illegal parking problems among drivers through the implementation of this empirical project. He also added that he would like to contribute to the mitigation of traffic through additional services, the creation of new jobs in areas such as parking and car washing through the release of the data to the third parties. Global News Team global@hanyang.ac.kr Translation by: Lee Won-young

2020-06 23

[Academics]Professor Eun Yong-soo Publishes a Book Related to International Relations Theory Through Routledge

Professor Eun Yong-soo Professor Eun Yong-soo from the Department of Political Science and International Studies recently published a book based on his studies related to international political theory through Routledge, a British publishing house. In his latest book, Going beyond Parochialism and Fragmentation in the Study of International Relations, Professor Eun presents limitations and alternatives to the already existing Western-centered theories of international politics. McGill University’s Professor T. V. Paul who is also a former president of the International Studies Association and Professor Colin Wight from the University of Sydney both took part in the publication of Professor Eun’s book. Founded in 1836, Routledge currently has more than 20 SSCI-level Humanities and Social Sciences journals. Meanwhile, as a professor in the Department of Political Science and International Relations, Professor Eun Yong-soo has published his papers as an independent author for all the official journals from the world’s four major political science and diplomacy societies: the American Political Science Association (APSA), the International Studies Association (ISA), the Political Studies Association (PSA), and the British International Studies Association (BISA). He has also been researching international political theory and postcolonialism. The cover of Going beyond Parochialism and Fragmentation in the Study of International Relations *Link for the publisher’s website and Professor Eun Yong-soo’s book: https://www.routledge.com/Going-beyond-Parochialism-and-Fragmentation-in-the-Study-of-International/Eun/p/book/9781138063006 Read more about Professor Eun Yong-soo on [Hanyang Wiki]: hyu.wiki/은용수 Global News Team global@hanyang.ac.kr Translation by: Lee Jung-joo

2020-06 01 Important News

[Academics][Excellent R&D] Standing at the Center of Cutting-Edge Technology

Although there have been notable advances in the study of natural science, research related to high pressure has not been active in Korea due to the lack of groundwork technology. Professor Kim Jaeyong (Department of Physics) is opening up the route to high pressure research through the HYU-HPSTAR-CIS High Pressure Research Center, the hub of collaboration between the world-class institutes. Professor Kim Jaeyong (Department of Physics) is paving the way for high pressure research in Korea. The HYU-HPSTAR-CIS High Pressure Research Center was established in 2016 with support from The Ministry of Science and ICT. The research center is in a collaborative relationship with the Carnegie Institution for Science (CIS) of the United States and the Center for High Pressure Science and Technology Advanced Research (HPSTAR) of China. The three institutes are consistently sharing their research outcomes by holding joint symposiums and reinforcing researcher exchanges. Kim explained the collaboration as “a successful case of acquiring advanced technologies by bringing in world-class institutes,” referring to the research spirit of the center as “Moon Ik-jeom spirit.” Moon is a historical figure who brought cottonseed from China into Korea, allowing the country to produce and distribute cotton to citizens. Just as Moon did in the past, Kim attained three diamond anvil cells, high pressure devices that enable the compression of a small piece of material with extreme pressure, from HPSTAR in 2016. Within a short period, Kim succeeded in producing a unique version of the cell. The center’s main focus is on hydrogen energy storage. The have recently reported successful results in the reversible storage of hydrogen energy. By imposing high pressure in Ti-Zr-Ni Quasicrystals, the research team was able to keep 4.2 wt of hydrogen at room temperature. Kim hopes that the results will contribute to the commercialization of hydrogen-powered cars. Kim hopes to contribute to the commercialization of hydrogen-powered cars with his recent research. Kim has demonstrated his will to help position the HYU-HPSTAR-CIS High Pressure Research Center as the hub of high pressure research. Kim also encouraged more students to participate in the research. “Our university has sufficient human resources, research conditions, and support systems to conduct the research,” said the professor. “I hope the students can feel the sense of thrill that comes from standing at the center of cutting-edge technology.” Oh Kyu-jin alex684@hanyang.ac.kr

2020-06 01

[Academics][Researcher of the Month] Effective Use of Photocatalysts to Combat Environmental Problems

Numerous attempts have been made by engineers to apply technology to our everyday problems. Professor Park Jae-woo (Department of Civil and Environmental Engineering) tackles one of the most critical problems of our time, environmental pollution, using the special characteristics of nano photocatalysts. His research focuses on resolving the problems caused during the reduction-oxidation process of photocatalysts. Through his research, he has discovered that the use of the Charge Transfer Layer (CTL) is significantly effective, and expects the findings to help organic pollutants decompose through photocatalysts, which will lead to a cleaner society. For the past 15 years, Park has been conducting research on the development of magnetic-cored dendrimers and nano-photocatalysts for the purpose of environmental purification. According to Park, nano-photocatalysts have the power to commence oxidation in hazardous substances by separating electrons from holes. This process of oxidation converts substances into water and carbon dioxide gas, which are harmless to the environment. However, despite their striking capabilities, photocatalysts have their shortcomings. In his research, Park focused on compromising with the photocatalysts' technical problem. For the past 15 years, Professor Park Jae-woo (Department of Civil and Environmental Engineering) has been conducting research on the development of nano-photocatalysts for the purpose of environmental purification. The problem with the use of photocatalysts One of the biggest disadvantages of using the reduction-oxidation of photocatalysts is that electrons have the tendency to return to their respective electron holes. Their tendency to recombine after separation lowered the rate at which photocatalysts oxidized harmful substances, and many researchers have sought out ways to prevent the recombination of electrons with the electron holes. The existing methods such as doping, facet, and core-shell merely slow down the rate at which electrons recombine with electron holes and fail to completely separate them. However, Park has succeeded in permanently separating the electrons using the CTL. How was CTL used? A photocatalyst which utilizes the CTL is comprised of three components: the photocatalyst which forms a pair of electrons and electron holes, the CTL which moves the electrons selectively, and the collector which accumulates and stores the moved electrons. Here, the CTL, being the main component, carries the electrons while inhibiting their passage through electron holes. As a result, the electron is moved from the photocatalyst to the electron collector, and suppresses them from recombining. What makes Park and his team’s accomplishment so unique is the fact that their work did not stop at only delaying the recombination, as previous methods had done, but also entirely prevented recombination by separating the electrons and shutting down the reverse-travelling by maintaining a high level of catalyst reaction. The result of the research “We have conducted two experiments to prove there is an increased activation of catalysts by using the CTL in the mentioned study,” said Park. He continued, “The first, is hydrolysis. A catalyst under the influence of the CTL displayed 78% higher hydrogenative yield than the existing one in the visible ray photography. Then, in the experiment with the subject bisphenol A, which is an organic pollutant, the catalyst showed a very high 93% removal rate after three hours of reaction." Park also believes that catalysts utilizing the CTL can be applied to energy and environment-related fields in an extensive range. Park said, “I want to thank my graduate school students, whose effort and sweat have made all this possible.” Park expressed gratitude to his graduate school students, whose effort and hard work have made the project possible. “It motivates me to reflect on my mindset when I see students working so hard on the research topic.” He especially thanked Hassan Anwer (Civil and Environmental Engineering, Doctoral program) for his devotion to the research. Lee Yoon-seo cipcd0909@hanyang.ac.kr