Self-aligned, full solution process polymer field-effect transistor on flexible substrates.
Conventional techniques to form selective surface energy regions on rigid inorganic substrates are not suitable for polymer interfaces due to sensitive and soft limitation of intrinsic polymer properties. Therefore, there is a strong demand for finding a novel and compatible method for polymeric surface energy modification. Here, by employing the confined photo-catalytic oxidation method, we successfully demonstrate full polymer filed-effect transistors fabricated through four-step spin-coating process on a flexible polymer substrate. The approach shows negligible etching effect on polymeric film. Even more, the insulating property of polymeric dielectric is not affected by the method, which is vital for polymer electronics. Finally, the self-aligned full polymer field-effect transistors on the flexible polymeric substrate are fabricated, showing good electrical properties and mechanical flexibility under bending tests.
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
Yan
Y
Yan
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
Long-Biao
LB
Huang
Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 508060, P.R. China.
Ye
Y
Zhou
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
Su-Ting
ST
Han
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
Li
L
Zhou
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
Jiaqing
J
Zhuang
Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China.
Zong-Xiang
ZX
Xu
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.|State Key Laboratory for Millimeter Waves, City University of Hong Kong, Kowloon Tong, Hong Kong SAR.
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VA
Roy