期刊
IEEE ELECTRON DEVICE LETTERS
卷 29, 期 9, 页码 1004-1006出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2008.2000891
关键词
flexible printing devices; organic thin-film transistor (OTFT); printed electronics
资金
- National Science Foundation (NSF)
- Pennsylvania State Center for Nanoscale Science
- Office of Naval Research
We report 7- and 15-stage spin-cast contact-crystallized 2, 8-difluoro-5, 11-bis(triethylsilylethynyl) anthradithiophene (diF-TESADT) organic thin-film transistor (OTFT) ring oscillators on plastic substrates with a maximum frequency of more than 22 kHz and a propagation delay of less than 3.3 mu s/stage at a supply bias of -80 V. The circuits have stable operation for a supply bias as small as -3 V (25-30 mu s/stage). Spin-cast diF-TESADT OTFTs from a toluene solution on plastic substrates have a mobility of 0.1-0.2 cm(2)/V center dot s with a contact-related microstructure from pentafluorobenzenethiol-treated An source and drain electrodes.
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