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Poly(3‐hexylthiophene)/Gold Nanoparticle Hybrid System with an Enhanced Photoresponse for Light‐Controlled Electronic Devices
Author(s) -
Han SuTing,
Zhou Ye,
Yang QingDan,
Lee ChunSing,
Roy V. A. L.
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201300005
Subject(s) - materials science , nanocomposite , x ray photoelectron spectroscopy , optoelectronics , nanoparticle , photoluminescence , spectroscopy , transistor , colloidal gold , nanotechnology , field effect transistor , chemical engineering , voltage , electrical engineering , physics , quantum mechanics , engineering
Light‐controlled electrical behavior of polymer/nanoparticle hybrid system in ambient condition is demonstrated. By embedding gold nanoparticles (Au NPs) in a poly(3‐hexylthiophene) (P3HT) matrix, the photoresponses of the nanocomposite films are enhanced. The electrical behavior of the P3HT/Au NPs nanocomposite transistors and inverters are tuned over a wide range in depletion mode. UV‐visible absorption spectroscopy, ultraviolet photoelectron spectroscopy (UPS), and steady‐state photoluminescence (PL) spectroscopy are used to analyze the nanocomposite films. The findings provide a better understanding of light‐induced threshold voltage shifts of P3HT‐based field‐effect transistors and inverters and demonstrate their potential applications in electronic signal modulation for solution‐processed integrated circuits.