期刊
IEEE ELECTRON DEVICE LETTERS
卷 38, 期 8, 页码 1031-1034出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2017.2714845
关键词
Pentacene thin-film transistors; elastic dielectric layer; polydimethylsiloxane; oxygen plasma treatment; octadecyltrichlorosilane treatment
资金
- NSFC [51322305, 61574032, 61376074, 91233204]
- 111 Project [B13013]
A novel method was applied to realize the uniform and dense pentacene thin film on the elastic polydimethylsiloxane (PDMS) dielectric layer via vacuum deposition. The oxygen (O-2) plasma treatment followed by octadecyltrichlorosilane (OTS) vapor treatment was found to be important for the successful deposition of pentacene thin film with large grain size and hence high field-effect mobility. The highest mobility of the obtained pentacene-based organic thin-film transistors (OTFTs) was 0.65 cm(2)V(-1)s(-1) at the optimized condition with O-2 plasma treatment of 100 s and OTS treatment of 7 h. Furthermore, the flexible pentacene OTFTs based on PDMS dielectric layer were successfully fabricated. This letter opens up the capability of PDMS as dielectric layer for the fabrication of the vacuum-depositeddevices, exhibiting a strong potential for future large-scale flexible and conformal electronics.
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