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Alcohol as a Processing Solvent of Polymeric Semiconductors to Fabricate Environmentally Benign and High Performance Polymer Field Effect Transistors
Author(s) -
Cheon Kwang Hee,
Ahn Hyungju,
Cho Jangwhan,
Yun HuiJun,
Lim Byung Tack,
Yun Dong Jin,
Lee HanKoo,
Kwon SoonKi,
Kim YunHi,
Chung Dae Sung
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201500877
Subject(s) - materials science , polymer , solvent , thin film transistor , conjugated system , semiconductor , chemical engineering , field effect transistor , vinyl alcohol , nanotechnology , transistor , organic chemistry , optoelectronics , composite material , chemistry , physics , layer (electronics) , voltage , quantum mechanics , engineering
Here, a novel strategy is reported to develop polymer field effect transistors using ethanol, propanol, and butanol—the most environmentally benign solvent except water—as processing solvents. From such environmentally benign processes, for the first time high‐mobility (>1 cm 2 V −1 s −1 ) polymer field effect transistors are demonstrated. These mobility values realized from “really green solvents” exceed those of conventional hydrogenated amorphous silicon semiconductors. To achieve this 1) stable sub‐microparticles of conjugated polymers dispersed in alcohols are fabricated, 2) an aldehyde‐assisted surface tension‐depression methodology is developed to successfully form thin films from alcohol, and 3) the structural information of alcohol‐dispersed sub‐microparticles of semiconducting polymers is carefully characterized.