An Experimental Study of the Effects of Source/Drain to Gate Overlap in Pentacene Thin-Film Transistors

作者:Park Jaehoon*; Do Lee Mi; Pearson Christopher; Petty Michael; Kim Dong Wook; Choi Jong Sun
来源:Japanese Journal of Applied Physics, 2012, 51(9): 09MJ01.
DOI:10.1143/JJAP.51.09MJ01

摘要

The effects of the source/drain (S/D) to gate overlap on the electrical characteristics of pentacene organic thin-film transistors (OTFTs) are reported. The S/D to gate overlap dimension was varied by adjusting the gate width, while the channel length and width were fixed. The threshold voltage was found to decrease on increasing the overlap dimension; in contrast, the field-effect mobility increased. These characteristic variations are explained on aspects of charge injection and transport properties in pentacene OTFTs, due to the presence of S/D to gate overlaps. The results demonstrate the significant effect of the overlap on the OTFT performance.

  • 出版日期2012-9