We have fabricated the flexible semitransparent pentacene-based thin-film transistors (TFTs) with poly-4-vinylphenol (PVP) dielectric layers which were deposited by spin coating on a thermostable plastic substrate with a conductive film. For the sourcedrain (SD) electrodes of our flexible pentacene TFTs both Au and semitransparent Ni Ox have been tested. It was found that Ni Ox was better matched to the pentacene channel for the SD contacts than Au. Our flexible pentacene TFTs with semitransparent Ni Ox contacts exhibited mobility of ∼0.24 cm2 V s higher than that achieved with Au contacts (∼0.14 cm2 V s) and also demonstrated a higher initial drain current.
Bibliographical noteFunding Information:
The authors acknowledge the financial support from KISTEP (Program No. M1-0214-00-0228) and the BK 21 Program. J.H.K. acknowledges the support from Yonsei University (Fund No. 1999-1-0029) and eSSC at Postech funded by MOST.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)