Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/442
Title: Organic phototransistor based on poly(3-hexylthiophene)/TiO₂ nanoparticle composite
Authors: Mok, SM
Yan, F 
Chan, HLW 
Keywords: Conducting polymers
Field effect transistors
Nanocomposites
Nanoparticles
Organic semiconductors
Phototransistors
Titanium
Issue Date: 18-Jul-2008
Publisher: American Institute of Physics
Source: Applied physics letters, 18 July 2008, v. 93, 023310, p. 1-3 How to cite?
Journal: Applied physics letters 
Abstract: Light sensitive phototransistor based on the composite of poly(3-hexylthiophene) and TiO₂ nanoparticles has been developed. The device shows a quick change in channel current under light exposure, which can be attributed to a positive shift of the threshold voltage, while no change in the field effect mobility and off current can be observed. The shift of the threshold voltage is induced by accumulated electrons trapped by the TiO₂ nanoparticles in the channel. The photosensitivity of the device has been found to be dependent on the concentration of TiO₂ nanoparticles, the incident wavelength and the voltage between the source and drain.
URI: http://hdl.handle.net/10397/442
ISSN: 0003-6951
Rights: © 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S.M. Mok, F. Yan, & H.L.W. Chan. Appl. Phys. Lett. 93, 023310 (2008) and may be found at http://link.aip.org/link/?apl/93/023310
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