| Title | Effects of humidity on unencapsulated poly(thiophene) thin-film transistors |
| Publication Type | Journal Article |
| Year of Publication | 2006 |
| Authors | M.L. Chabinyc, F. Endicott, BD Vogt, D.M. DeLongchamp, E.K. Lin, Y.L. Wu, P. Liu, and B.S. Ong |
| Journal | APPLIED PHYSICS LETTERS |
| Volume | 88 |
| Pagination | 113514 |
| Date Published | MAR 13 |
| ISSN | 0003-6951 |
| Abstract | The effects of humidity on unencapsulated polymeric thin-film transistors (TFTs) of poly[5,5'-bis(3-dodecyl-2-thienyl)-2,2'-bithiophene] (PQT-12) were investigated. The field effect mobility of PQT-12 TFTs decreases and the rate of trapping of charge carriers increases under increasing humidity. The amount of water absorbed by the PQT-12 films was measured using a quartz crystal microbalance. Thin films of PQT-12 absorb comparable amounts of water to the carrier concentration in TFTs under routine operating conditions (humidity of 30% relative humidity and gate voltage of -30 V); the changes in electrical characteristics under humid atmospheres are attributed to the interaction of absorbed water with the carriers in the film. (c) 2006 American Institute of Physics. |
| DOI | 10.1063/1.2181206 |
