Kim, Soo Jin Jang, Mi Yang, Hee Yeon Cho, Jinhan Lim, Ho Sun Yang, Hoichang Lim, Jung Ah 2024-01-20T01:34:20Z 2024-01-20T01:34:20Z 2021-09-01 2017-04-05 1944-8244 https://pubs.kist.re.kr/handle/201004/122854 We report the instantaneous pulsed-light cross linking of polymer gate dielectrics on a flexible substrate by using intensely pulsed white light (IPWL) irradiation. Irradiation with IPWL for only 1.8 s of a poly(4-vinylphenol) (PVP) thin film with the cross-linking agent poly(melamine-co-formaldehyde) (PMF) deposited on a plastic substrate was found to yield fully cross linked PVP films. It was confirmed that the IPWL-cross-linked PVP films have smooth pinhole free surfaces and exhibit a low leakage current density, organic solvent, resistance; and good compatibility with organic semiconductor, and that they can be used as replacements for typical PVP dielectrics that are cross-linked with time and energy intensive thermal heating processes. The synchronization of the IPWL irradiation with substrate transfer was found to enable the preparation of cross-linked PVP films on large area substrates with a highly unifirm capacitance. Flexible OTFT based on IPWL-cross-linked PVP dielectrics were found to exhibit good electrical performance that is comparable to that of devices with thermally cross-linked PVP dielectric, as well as excellent deformation stability even at a bending radius of 3 mm. English American Chemical Society HIGH-PERFORMANCE EFFICIENT PRODUCTION FLASH TEMPERATURE NANOTUBES POLYIMIDE Instantaneous Pulsed-Light Cross-Linking of a Polymer Gate Dielectric for Flexible Organic Thin-Film Transistors Article 10.1021/acsami.6b14957 1 ACS Applied Materials & Interfaces, v.9, no.13, pp.11721 - 11731 ACS Applied Materials & Interfaces 9 13 11721 11731 scie scopus 000398764100045 2-s2.0-85017180401 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article HIGH-PERFORMANCE EFFICIENT PRODUCTION FLASH TEMPERATURE NANOTUBES POLYIMIDE intensely pulsed white light cross-linking gate dielectric organic thin-film transistors flexible substrate