Improving photo-switching property of organic photo-FET having photosensitive gate dielectric

H. Kawai; T. Kondo; T. Kawai; M. Yoshida; S. Uemura; S. Hoshino; T. Kodzasa; T. Kamata

doi:10.1117/12.678929

25 August 2006 Improving photo-switching property of organic photo-FET having photosensitive gate dielectric

H. Kawai, T. Kondo, T. Kawai, M. Yoshida, S. Uemura, S. Hoshino, T. Kodzasa, T. Kamata

Proceedings Volume 6336, Organic Field-Effect Transistors V; 63361E (2006) https://doi.org/10.1117/12.678929
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

We fabricated a novel type photo-FET using poly(N-vinylcarbazole) (PVK) as a photosensitive gate dielectric. For the photo-FET, photo-illumination to the PVK insulator layer makes the field-effect mobility μ_FET two orders of magnitude higher than dark condition. In particular, under blue-light illumination condition the on-off ratio was also a few ten times higher than dark condition. Furthermore, by introducing blocking layer between semiconductor layer and insulator layer lead. We concluded that the improvement of the transistor properties resulted from effective charge accumulation at the conductive channel by photo illuminations.

Citation Download Citation

H. Kawai, T. Kondo, T. Kawai, M. Yoshida, S. Uemura, S. Hoshino, T. Kodzasa, and T. Kamata "Improving photo-switching property of organic photo-FET having photosensitive gate dielectric", Proc. SPIE 6336, Organic Field-Effect Transistors V, 63361E (25 August 2006); https://doi.org/10.1117/12.678929

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