High mobility n-channel organic field-effect transistors based on soluble C-60 and C-70 fullerene derivativesWoebkenberg, P. H., Bradley, D. D. C., Kronholm, D., Hummelen, J. C., de Leeuw, D. M., Coelle, M., Anthopoulos, T. D., H. Wobkenberg, P. & Colle, M., Jul-2008, In : Synthetic Metals. 158, 11, p. 468-472 5 p.
Research output: Contribution to journal › Article › Academic › peer-review
We report on n-channel organic field-effect transistors (OFETs) based on the solution processable methanofullerenes [6,6]-phenyl-C-61-butyric acid ester (PCBM) and [6,6]-phenyl-C-71-butyric acid methyl ester (170]PCBM). Despite the fact that both derivatives form glassy films when processed from their electron mobilities are high and on the order of 0.21 cm(2/)V s and 0.1 cm(2)/V s, for PCBM solution, and PCBM, respectively. Although the derived mobility of PCBM is comparable to the best values reported in the literature, the electron mobility of PCBM is the highest value reported to date for any C-70 based molecule. We note that this is the only report in which C-60 and Cd-70 methanofullerenes exhibit comparable electron mobilities. The present findings could have significant implications in the area of large-area organic electronics and organic photovoltaics where C-60 derivatives have so far been the most widely used electron acceptor materials. (C) 2008 Elsevier B.V. All rights reserved.
|Number of pages||5|
|Publication status||Published - Jul-2008|
- organic transistors, methanofullerenes, fullerene derivatives, n-channel, electron transport, THIN-FILM TRANSISTORS, POLYMER SOLAR-CELLS, COMPLEMENTARY CIRCUITS, SEMICONDUCTORS, METHANOFULLERENE, EFFICIENT, DESIGN