Abstracts of The Japanese Liquid Crystal Society Annual Meetings 2006
巻, 号, ページ
pp. 2pA08
出版年月
2007年9月
出版者
和文:
日本液晶学会
英文:
Japanese Liquid Crystal Society
会議名称
和文:
2007年日本液晶学会討論会
英文:
開催地
和文:
東京工業大学、東京
英文:
Tokyo Institute of Technology, Tokyo
アブストラクト
We have fabricated field effect transistors (FET) with polycrystalline thin films of a liquid crystalline quarterthiophene derivative, ω,ω’-dihexylquaterthiophene (6-QTP-6) prepared by spin-coating at liquid crystalline temperature of 100 oC, and characterized their TFT performance. The resulting polycrystalline thin films exhibited good uniformity, in which the molecules were aligned vertically on substrates. The FETs exhibited p-channel behavior, and their mobility and current On/Off ratio were 5×10-2 cm2/Vs and 108, respectively. The FET mobility was the same as that measured by TOF experiments, indicating that the carrier transport of the planar direction in the thin film was hardly affected by grain boundaries. We conclude the polycrystalline thin films of liquid crystals are good candidate for organic TFT materials.
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