Title :
Solution-Processed TIPS-Pentacene Organic Thin-Film-Transistor Circuits
Author :
Park, Sung Kyu ; Anthony, John E. ; Jackson, Thomas N.
Author_Institution :
Penn State Univ., University Park
Abstract :
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/Vldrs 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 mus 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.
Keywords :
carrier mobility; field effect transistor circuits; organic semiconductors; semiconductor thin films; thin film transistors; OTFT circuits; active semiconductor material; field-effect mobility; glass substrates; patterned bottom-gate solution; seven-stage ring oscillators; solution-processed organic thin-film transistors; subthreshold slope; triisopropylsilyl pentacene; voltage -80 V; Circuits; Frequency; Glass; Organic thin film transistors; Pentacene; Propagation delay; Ring oscillators; Semiconductor materials; Substrates; Thin film transistors; Organic electronics; organic thin-film transistors (OTFTs); solution-processed electronics; thin-film transistors (TFTs);
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2007.905374
