Air-exposure Effects on Complementary Organic Thin-Film Transistors and Inverter
- Title
- Air-exposure Effects on Complementary Organic Thin-Film Transistors and Inverter
- Authors
- 유승현
- Date Issued
- 2018
- Publisher
- 포항공과대학교
- Abstract
- We demonstrated the balancing of p-type and n-type organic thin-film transistors (OTFTs) and complementary inverters using air-exposure effects. Pentacene and N,N′-ditridecylperylene- 3,4,9,10-tetracarboxylic diimide (PTCDI-C13) are used as the p-type and n-type semiconductors, respectively. Based on ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS) analysis, we found that HOMO energy levels of both p-type and n-type semiconductor films were upward shifted when they were exposed to ambient air. These mechanisms account for the measured electrical characteristics of OTFTs, which exhibited shifts of on current level ION and turn-on voltages VTO as a function of exposure time to air. By using such air-exposure effects, we demonstrate the balanced p- and n-type OTFTs with comparable ION and VTO. Finally, we also demonstrate complementary inverter based on the balanced p- and n-type OTFTs.
- URI
- http://postech.dcollection.net/common/orgView/200000007619
https://oasis.postech.ac.kr/handle/2014.oak/93361
- Article Type
- Thesis
- Files in This Item:
- There are no files associated with this item.
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