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Precisely Controlled Ultrathin Conjugated Polymer Films for Large Area Transparent Transistors and Highly Sensitive Chemical Sensors
Author(s) -
Khim Dongyoon,
Ryu GiSeong,
Park WonTae,
Kim Hyunchul,
Lee Myungwon,
Noh YongYoung
Publication year - 2016
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.201505946
Subject(s) - materials science , nanotechnology , transistor , polymer , transparency (behavior) , optoelectronics , percolation (cognitive psychology) , thin film transistor , computer science , layer (electronics) , electrical engineering , composite material , voltage , neuroscience , biology , computer security , engineering
A uniform ultrathin polymer film is deposited over a large area with molecularlevel precision by the simple wire‐wound bar‐coating method. The bar‐coated ultrathin films not only exhibit high transparency of up to 90% in the visible wavelength range but also high charge carrier mobility with a high degree of percolation through the uniformly covered polymer nanofibrils. They are capable of realizing highly sensitive multigas sensors and represent the first successful report of ethylene detection using a sensor based on organic field‐effect transistors.