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Steady State and Transient Photoconductivity of Thin Film Polydiacetylene Single Crystals

Published online by Cambridge University Press:  22 February 2011

Y. Yang ,
J. Y. Lee ,
P. Miller ,
L. Li ,
J. Kumar ,
S. K. Tripathy ,
H. Matsuda ,
S. Okada  and
H. Nakanishi
Y. Yang
Affiliation:
Department of Physics, University of Lowell, Lowell, MA.01854
J. Y. Lee
Affiliation:
Department of Chemistry, University of Lowell, Lowell, MA.01854
P. Miller
Affiliation:
Department of Physics, University of Lowell, Lowell, MA.01854
L. Li
Affiliation:
Department of Physics, University of Lowell, Lowell, MA.01854
J. Kumar
Affiliation:
Department of Physics, University of Lowell, Lowell, MA.01854
S. K. Tripathy
Affiliation:
Department of Chemistry, University of Lowell, Lowell, MA.01854
H. Matsuda
Affiliation:
Research Institute for Polymers and Textiles, 1–1–4 Higashi, Tsukuba, Ibaraki 305, Japan
S. Okada
Affiliation:
Research Institute for Polymers and Textiles, 1–1–4 Higashi, Tsukuba, Ibaraki 305, Japan
H. Nakanishi
Affiliation:
Research Institute for Polymers and Textiles, 1–1–4 Higashi, Tsukuba, Ibaraki 305, Japan
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Abstract

Charge carrier generation and transport mechanisms in polydiacetylene thin film single crystals., poly-PTS (2,4-hexadiyne-1,6-diol bis(p-toluenesulfonate)) and poly- BTFP (bis-(4-n-butyl-2,3,5,6-tetra-fluorophenyl) butadiyne), are studied by using steady state and transient photoconductivity techniques. The electric field dependence of the steady state photocurrent is superlinear for both samples. Dependence of photocurrent on incident light polarization has been investigated. The polarization dependence of photocurrent has completely different behavior for the polydiacetylene PTS and BTFP. Single-gap transmission line experiment has been designed to directly measure the drift velocity of PTS single crystals. A drift velocity of the order of 106cm/s was measured.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 214: Symposium R1 – Optical and Electrical Properties of Polymers , 1990 , 177
Copyright
Copyright © Materials Research Society 1991

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References

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