Kwan Hyun Cho
Senior Researcher/ Korea Institute of Industrial Technology (KITECH)
Organic film transfer methodology via intense pulse light for solution-processed OLEDS
Kwan Hyun Cho (1,*), Kyung Tae Kang (1)
(1) Korea Institute of Industrial Technology, Ansan 426-910, Korea Institute of Industrial Technology, Ansan 426-910, Republic of Korea
Solution processed organic light emitting diode (OLED) have attracted much attention due to the efficient use of material, easy scalable for large sized display. However, to fabricate multilayer OLEDs, conventional solution processes have many technological challenges due to the bottom layer dissolution, intermixing at the interface and solvent penetration, etc. We demonstrate novel organic film transfer methodology via intense pulse light (IPL) for solution based multilayer structured OLEDs. These film transfer technology can improve the quality of the organic films, and achieve a breakthrough in the fabrication of high-resolution full-color OLED display.
Dr. Kwan Hyun Cho is a senior researcher in the Micro/Nano Scale Manufacturing R&D Group at Korea Institute of Industrial Technology (KITECH) in Korea. He received a B.S. degree in Electrical Engineering from Kyungpook National University, Korea, in 2005, and M.S. and Ph.D degrees in Electrical Engineering from KAIST, Korea, in 2078 and 2011, respectively. Prior to joining Korea Institute of Industrial Technology, he was a senior research engineer at Samsung Display from 2011 to 2013. His current research focuses on developing novel device architectures and processes based organic and other emerging semiconductors such as quantum dots (QDs) in the following areas: displays, photovoltaics, and low-cost printed electronics.
Korea Institute of Industrial Technology (KITECH) is a Korean government supported research institute, which has 7 regional divisions. The Center for Advanced Printed Electronics (CAPE) is a research group in the KITECH. The CAPE has carried out research activities for developing micro devices that are greatly needed in today’s society, using printing technologies such as inkjet printing, EHD jet printing, nozzle printing as well as their supporting technologies such as precise material curing process etc. Many electronic components have been manufactured by printing technologies which prove the possibility of the printing as a future major manufacturing technology.