Submicron channel-length pentacene thin-film transisors (TFTs) were fabricated by electron beam lithography and a lift-off process. It was found that pentacene TFTs operated in the submicron channel length, but an enhancement of the off-stage leakage current and a large hysteresis were observed. By further investigation, we found that the large hysteresis observed in the submicron channel length was due to the moisture in the air. We also found a non-moisture-related degradation, in addition to a moisture-related one, by a time-dependent degradation measurement. It is of great importance both to avoid the moisture invasion and to reduce charging sites in the channel for reliable pentacene TFTs.
|Number of pages||4|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Issue number||6 A|
|Publication status||Published - 2003 Jun|
- Short-channel effect
ASJC Scopus subject areas
- Physics and Astronomy(all)