Title
High performance organic phototransistor based on regioregular poly(3-hexylthiophene)
Abbreviated Journal Title
Nanotechnology
Keywords
FIELD-EFFECT TRANSISTORS; POLYMER; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
Abstract
We fabricated solution processed organic phototransistors (OPT) by drop casting regioregular poly 3-hexylthiophene (P3HT) from three different solvents: p-xylene, dichlorobenzene and chloroform. The best performance was obtained for films drop-casted from p-xylene with a maximum photosensitivity (P) of 3.8 x 10(3) and responsivity (R) of 250 A W(-1) under white light illumination. For films deposited from dichlorobenzene and chloroform the values of P were 1.1 x 10(3) and 30, respectively, while the values of R were 150 and 35, respectively. The maximum responsivity value reported here is at least one order of magnitude higher than that of previously reported solution processed OPT devices. By analyzing the absorption spectra of different films, we conclude that the better device performance of OPT from p-xylene is due to better crystallinity of P3HT. Demonstration of high performance OPTs is a significant step forward in integrating these devices in various optoelectronic circuits.
Journal Title
Nanotechnology
Volume
21
Issue/Number
32
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
5
WOS Identifier
ISSN
0957-4484
Recommended Citation
"High performance organic phototransistor based on regioregular poly(3-hexylthiophene)" (2010). Faculty Bibliography 2010s. 625.
https://stars.library.ucf.edu/facultybib2010/625
Comments
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