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Interface Control in Organic Electronics Using Mixed Monolayers of Carboranethiol Isomers
Author(s) -
Jaemyung Kim,
You Seung Rim,
Yongsheng Liu,
Andrew C. Serino,
John C. Thomas,
Huajun Chen,
Yang Yang,
Paul S. Weiss
Publication year - 2014
Publication title -
nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.853
H-Index - 488
eISSN - 1530-6992
pISSN - 1530-6984
DOI - 10.1021/nl501081q
Subject(s) - monolayer , work function , dipole , molecular electronics , self assembled monolayer , nanotechnology , transistor , molecule , field effect transistor , materials science , electronics , fabrication , organic molecules , interface (matter) , chemistry , layer (electronics) , organic chemistry , electrical engineering , voltage , medicine , alternative medicine , gibbs isotherm , pathology , engineering
We employ mixed self-assembled monolayers of carboranethiols to alter the work function of gold and silver systematically. We use isomers of symmetric carboranethiol cage molecules to vary molecular dipole moments and directions, which enable work function tunability over a wide range with minimal alterations in surface energy. Mixed monolayers of carboranethiol isomers provide an ideal platform for the study and fabrication of solution-processed organic field-effect transistors; improved device performance is demonstrated by interface engineering.

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