Abstract
We present a near IR photoresponse study of large area multiwalled carbon nanotube/poly(3-hexylthiophene)-block-polystyrene polymer (MWNT/P3HT-b-PS) nanocomposite films for different loading ratio of MWNT into the polymer matrix. We show that the photocurrent strongly depends on the position of the laser spot with maximum photocurrent occurring at the metal-film interface. In addition, compared to the pure MWNT film, the photoresponse is much larger in the MWNT/polymer composite films. The time constant for the photoresponse is slow and varies between 0.6 and 1.2 s. We explain the photoresponse by Schottky barrier modulation at the metal-film interface.
Journal Title
Applied Physics Letters
Volume
94
Issue/Number
4
Publication Date
1-1-2009
Document Type
Article
DOI Link
WOS Identifier
ISSN
0003-6951
Recommended Citation
Stokes, Paul; Liu, Liwei; Zou, Jianhua; Zhai, Lei; Huo, Qun; and Khondaker, Saiful I., "Photoresponse in large area multiwalled carbon nanotube/polymer nanocomposite films" (2009). Faculty Bibliography 2000s. 2185.
https://stars.library.ucf.edu/facultybib2000/2185
Comments
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