We have fabricated solution-processed organic thin-film transistors (OTFTs) and circuits using triisopropylsilyl pentacene (TIPS-pentacene) as the active semiconductor material. Patterned bottom-gate solution-processed TIPS-pentacene OTFTs on glass substrates have mobility as large as 0.6 cm2/V̇ s and subthreshold slope as low as 0.4 V/dec. Seven-stage ring oscillators have oscillation frequency greater than 10 kHz and propagation delay of less than 8 μs per stage at a bias of -80 V. The 7- and 15-stage ring oscillators also operate with supply-voltage magnitude of less than 5 V.
|Number of pages||3|
|Journal||IEEE Electron Device Letters|
|State||Published - Oct 2007|
Bibliographical noteFunding Information:
Manuscript received June 12, 2007; revised July 13, 2007. This work was supported in part by the National Science Foundation through the Penn State Center for Nanoscale Science, an NSF MRSEC. The review of this letter was arranged by Editor Y. Taur.
- Organic electronics
- Organic thin-film transistors (OTFTs)
- Thin-film transistors (TFTs)
- solution-processed electronics
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering