Chemical Engineering-BASF Research Institute, Development of Plastic Flexible Substrate Technology for OLED
- 공과대학
- Hit4530
- 2021-01-24
Department of Chemical Engineering-BASF Electronic Materials Research Institute,
Development of Plastic Flexible Substrate Technology for Next Generation OLED
- Securing technology for plastic substrates with glass substrate level transparency and thermal expansion coefficient
- Selecting an internal cover thesis for Advanced Materials Interfaces
In cooperation with BASF's Asia-Pacific Electronic Materials Research Institute, a global chemical company, Korea University has succeeded in developing plastic flexible substrate technology for OLED displays. Through industrial-academic cooperation research to develop technologies for next-generation displays, it has secured technologies for plastic substrates with transparency and thermal expansion coefficients that are equivalent to glass substrates.
Professor Lee Ki-ra, Professor Cho Sung-min, Professor Yoo Pil-jin, Professor Kim Duk-joon's research team, and Dr. Marc Schroeder of Basf Asia-Pacific Electronic Materials Research Institute manufactured nanoparticles with refractive index in PESU. New composite film materials developed can be used as plastic flexible substrates for next-generation OLED displays that have excellent transparency and require high performance stability due to low thermal expansion factors.
The researchers coated silicon oxide (SiO2) nanoparticles on zinc sulfide (ZnS) particles to equal refractive index of polyethersulfone macromolecules, and implemented relative transparency of more than 90% of composite films. At the same time, chemical bonds between particles and macromolecules were induced to reduce the thermal expansion coefficient of composite films to 12 ppm/oC, which is much lower than the 20 ppm/oC required for practical use in OLED processes.
The results of this study were selected as an internal cover paper in the renowned international journal Advanced Materials Interfaces in material science and published in December, and the industry-academic cooperation team is currently conducting a follow-up study to commercialize plastic flexible substrates for OLED displays.
Shin Dong-ryul, president of this school, expressed his expectation, saying, "It will be the best model of global industry-academic cooperation pursued by universities around the world as the first joint research by the cooperation of the two institutions, each symbol of innovation."
Dr. Mark Shredder, former director of electronic materials research in Basf Asia-Pacific, said, "We have achieved the achievement of developing new nano-complex materials with excellent materials applicable to electronic devices in cooperation with top-notch universities and affiliated studies in Korea."