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Proceedings Paper

Photorefractive polymer device with improved sensitizing property
Author(s): Tam V. Nguyen; Ha N. Giang; K. Kinashi; W. Sakai; N. Tsutsumi
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Paper Abstract

photorefractive (PR) application because of a fast hole mobility. In most of the previous studies, phenyl-C61-butyric acid methyl ester (PCBM) was used as a sensitizer. In this study, a high-performance charge generator perylene bisimide (PBI) is synthesized and added into the composite. PBI derivatives owning a large core of π-conjugated rings provide a high electron affinity and high charge carrier mobility. These features are promising to improve PR properties. To the best of our knowledge, it is the first time for using a combine of PCBM and PBI to improve the PR performance of PDAA-based composites. 2-(4-(azepan-1-yl)benzylidene)malononitrile (7-DCST) is used as a nonlinear optical chromophore. (4-diphenylamino)phenyl)methanol (TPAOH) is used as a plasticizer. Consequently, a diffraction efficiency of 76 % and a response time of 8 ms were obtained with 532 nm green laser under the electric field of 55 V μm-1. As a conclusion, the introduction of PBI is a promising approach for the photorefractive composite owning the video rate response.

Paper Details

Date Published: 5 September 2015
PDF: 8 pages
Proc. SPIE 9564, Light Manipulating Organic Materials and Devices II, 95640Y (5 September 2015); doi: 10.1117/12.2186729
Show Author Affiliations
Tam V. Nguyen, Kyoto Institute of Technology (Japan)
Ha N. Giang, Kyoto Institute of Technology (Japan)
K. Kinashi, Kyoto Institute of Technology (Japan)
W. Sakai, Kyoto Institute of Technology (Japan)
N. Tsutsumi, Kyoto Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 9564:
Light Manipulating Organic Materials and Devices II
Jon A. Schuller, Editor(s)

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