Open AccessHighly Oriented Liquid Crystal Semiconductor for Organic Field-Effect Transistors
Author(s) -
Moon Jong Han,
Dayan Wei,
Yun Ho Kim,
Hyungju Ahn,
Tae Joo Shin,
Noel A. Clark,
David M. Walba,
Dong Ki Yoon
Publication year - 2018
Publication title -
acs central science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.893
H-Index - 76
eISSN - 2374-7951
pISSN - 2374-7943
DOI - 10.1021/acscentsci.8b00465
Subject(s) - liquid crystal , materials science , mesogen , anisotropy , birefringence , semiconductor , organic semiconductor , optoelectronics , transistor , field effect transistor , reliability (semiconductor) , nanotechnology , liquid crystalline , optics , electrical engineering , physics , voltage , engineering , power (physics) , quantum mechanics
We report a mesogenic compound which introduces nematic liquid crystal (LC) ordering into the benzothienobenzothiophene (BTBT) family of LCs, creating a new class of LC semiconducting materials which respond in a facile way to anisotropic surfaces, and can, thereby, be effectively processed into highly oriented monodomains. Measurement on these domains of the electrical conductivity, with in situ monitoring of domain quality and orientation using LC birefringence textures in electroded cells, brings a new era of precision and reliability to the determination of anisotropic carrier mobility in LC semiconductors.
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