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High‐Performance Organic Field‐Effect Transistors with Low‐Cost Copper Electrodes
Author(s) -
Di Chongan,
Yu Gui,
Liu Yunqi,
Guo Yunlong,
Wang Ying,
Wu Weiping,
Zhu Daoben
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701812
Subject(s) - pentacene , materials science , copper , electrode , optoelectronics , transistor , field effect transistor , work function , interface (matter) , layer (electronics) , copper phthalocyanine , organic semiconductor , nanotechnology , thin film transistor , electrical engineering , composite material , metallurgy , chemistry , engineering , voltage , capillary number , capillary action
Top‐contact Cu source–drain electrodes are used in high‐ performance organic field‐effect transistors based on pentacene or metal phthalocyanine active layers, as schematically depicted in the figure. Despite the low work function of copper, good hole injection is achieved in these devices because of the formation of an ultrathin Cu x O layer at the Cu/organic‐semiconductor interface.