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Solution‐Processable Organic Single Crystals with Bandlike Transport in Field‐Effect Transistors
Author(s) -
Liu Chuan,
Minari Takeo,
Lu Xubing,
Kumatani Akichika,
Takimiya Kazuo,
Tsukagoshi Kazuhito
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201002682
Subject(s) - materials science , transistor , annealing (glass) , field effect transistor , dielectric , insulator (electricity) , semiconductor , electron mobility , organic semiconductor , optoelectronics , nanotechnology , physics , quantum mechanics , composite material , voltage
Simple solvent‐vapor annealing was used to fabricate single crystals of dioctylbenzothienobenzothiophene on a polymer dielectric surface. By involving self‐organized phase separation, crystal length is enhanced and a good semiconductor/insulator interface is obtained. The field‐effect transistors (FETs) exhibit an average p‐type FET mobility of 3.0 cm 2 V −1 s −1 , with a highest value of 9.1 cm 2 V −1 s −1 . The FET mobility increases as temperature decreases, which suggests intrinsic bandlike transport.