[Researcher of the Month] Development of Organic Semiconductor Gel for High-Resolution Organic Electronics
Professor Kim Do Hwan (Department of Chemical Engineering)
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Organic semiconductor gel was first developed by Professor Kim Do Hwan (Department of Chemical Engineering) and his research team that opened doors to the dramatic performance enhancement of virtual reality (VR) and augmented reality (AR) devices. His paper “Universal Route to Impart Orthogonality to Polymer Semiconductors for Sub-Micrometer Tandem Electronics” was published in the world-famous journal Advanced Materials as the cover acticle in July.
That was, until about five years ago when high-performance organic semiconductors were created, enabling the speed of electricity transfer to become comparable to that of silicon semiconductors. However, another problem emerged as existing organic semiconductors could not adopt successive solutions and photolithography processes simultaneously, because organic semiconductors may dissolve or become damaged during patterning processes. Here, photolithography refers to the semiconductor patterning technology which uses UV light as in the process of silicon semiconductors. Kim and his research team investigated how organic semiconductors could keep the established solution processing, while maintaining the optoelectronic performance, as well as adopt the patterning process of silicon called photolithography.
The results of this research are expected to widen the application of new technology into various organic optoelectronic devices such as organic image sensors and neuromorphic electrodes, as successive solution processing and photolithography processing are now applicable. “The performance of VR and AR devices that used to arouse giddiness and motion sickness due to low resolution is expected to advance drastically with the application of organic semiconductor gel,” said Kim. The virtual reality that we thought only possible in movies has now become closer than ever to real life, with ultrahigh-definition (UHD) OLED microdisplays and high-performance VR and AR devices coming alive with the development of organic semiconductor gel.
Kim Hyun-soo email@example.com
Photos by Kim Ju-eun
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