The vertically stacked organic sensor-transistor on a flexible substrate

Shin Woo Jeong, Jin Wook Jeong, Seongpil Chang, Seung Youl Kang, Kyoung Ik Cho, Byeong Kwon Ju

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The authors report on the photo-response characteristics of flexible sensor-transistor circuits (ST-circuits) made with (poly(3-hexylethiophene)/ phenyl-C61 -butryic acid methyl ester) (P3HT/PCBM) bulk heterojunction polymer and pentacene-based organic field-effect transistors, which are stacked via poly(dimethylsiloxane) (PDMS) on the plastic substrate. The results indicate that the anode-source current is variable because of both the charge separation of the photogenerated excitons and the accumulated charges at the OFET channel layer. The light dependent photo response (ΔI/ I 0) is modulated from 0.47 to 1.9 by the gate-source voltage at the fixed anode-source voltage of the ST-circuits.

Original languageEnglish
Article number253309
JournalApplied Physics Letters
Volume97
Issue number25
DOIs
Publication statusPublished - 2010 Dec 20

Bibliographical note

Funding Information:
This work was supported by the IT R&D Program (Grant No. 2008-F-024-02, Development of Mobile Flexible Input/Output Platform) of MKE in Korea, Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2009-0083126) and the International Research and Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No. D00048).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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