Organic polymeric thin-film transistors fabricated by selective dewetting

TitleOrganic polymeric thin-film transistors fabricated by selective dewetting
Publication TypeJournal Article
Year of Publication2002
AuthorsM.L. Chabinyc, W.S. Wong, A. Salleo, K.E. Paul, and R.A. Street
JournalAPPLIED PHYSICS LETTERS
Volume81
Pagination4260-4262
Date PublishedNOV 25
ISSN0003-6951
AbstractThin-film transistors (TFTs) of polymeric semiconductors were fabricated using selective dewetting in the patterning process. The process consists of: (i) patterning the wettability of the substrate using a protective layer of printed wax and a self-assembled monolayer, and (ii) patterning a polymeric semiconductor by selective dewetting from an organic solution. The method has been used to fabricate small arrays of TFTs with a regioregular poly(thiophene) and poly(9-9(')-dioctyl-fluorene-co-bithiophene). The TFTs exhibited mobilities of 0.5-1.0x10(-3) cm(2) V-1 s(-1) and on-to-off ratios on the order of 10(4). (C) 2002 American Institute of Physics.
DOI10.1063/1.1524301