Highly Oriented Liquid Crystal Semiconductor for Organic Field-Effect Transistors

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 hig...

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Bibliographic Details
Published in:ACS central science 2018-11, Vol.4 (11), p.1495-1502
Main Authors: Han, Moon Jong, Wei, Dayan, Kim, Yun Ho, Ahn, Hyungju, Shin, Tae Joo, Clark, Noel A, Walba, David M, Yoon, Dong Ki
Format: Article
Language:English
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Summary: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.
ISSN:2374-7943
2374-7951
DOI:10.1021/acscentsci.8b00465