联苯衍生物的光折变效应

王淳; 齐辉; 常海涛; 邓家春

doi:10.3788/CO.20191202.0362

Volume 12 Issue 2

Apr. 2019

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Chinese Optics > 2019 > 12(2): 362-370.

WANG Chun, QI Hui, CHANG Hai-tao, DENG Jia-chun. Photorefractive phenomenon of biphenyl derivatives[J]. Chinese Optics, 2019, 12(2): 362-370. doi: 10.3788/CO.20191202.0362

Citation:

WANG Chun, QI Hui, CHANG Hai-tao, DENG Jia-chun. Photorefractive phenomenon of biphenyl derivatives[J]. Chinese Optics, 2019, 12(2): 362-370. doi: 10.3788/CO.20191202.0362

WANG Chun, QI Hui, CHANG Hai-tao, DENG Jia-chun. Photorefractive phenomenon of biphenyl derivatives[J]. Chinese Optics, 2019, 12(2): 362-370. doi: 10.3788/CO.20191202.0362

Citation:

WANG Chun, QI Hui, CHANG Hai-tao, DENG Jia-chun. Photorefractive phenomenon of biphenyl derivatives[J]. Chinese Optics, 2019, 12(2): 362-370. doi: 10.3788/CO.20191202.0362

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Photorefractive phenomenon of biphenyl derivatives

doi: 10.3788/CO.20191202.0362

1.
College of Science, Tianjin University of Technology, Tianjin 300384, China
2.
College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China

Funds:

National Natural Science Foundation(Youth Science Foundation Project) 11204213

Tianjin Application Foundation and Frontier Technology Research Program(Youth Foundation Project) 12JCQNJC00800

More Information

Author Bio:
WANG Chun (1992-), Master graduate student, College of Science, Tianjin University of Technology.Her research interests are about the photoelectric effect of semiconductor materials.E-mail:897101109@qq.com

DENG Jia-chun (1967-), Professor, College of Science, Tianjin University of Technology.He research interests are about the photoelectric effect of semiconductor materials.E-mail:dengjiachun@tjut.edu.cn
Corresponding author: DENG Jia-chun, E-mail:dengjiachun@tjut.edu.cn
Received Date: 15 May 2018
Rev Recd Date: 24 May 2018
Publish Date: 01 Apr 2019

Abstract

Abstract

The photorefractive phenomenon was observed in biphenyl derivatives materials under continuous wave laser(532nm) irradiation. Two types of sample were prepared:biphenyl derivatives(2-(4-hydroxypheny)-5-pyrimidinol, 4'-hydroxy-4-biphenyl carbonitrile, 3-amino-4-phenylphenol and 4, 4'-Biphenol) were respectively dissolved in N, N-dimethylformamide(DMF) detaining 4-solution samples, and the concentration was 2wt%; biphenyl derivatives were dissolved into a saturated solution of anhydrous ethanol as a solute, and the single crystals of biphenyl derivatives were obtained by slow evaporation of the ethanol solution at an ambient temperature. The experimental results show that cyclic symmetric bright-dark spatial stripes were formed after the laser beam transmitted through the 2-(4-hydroxypheny)-5-pyrimidinol, 4'-hydroxy-4-biphenyl carbonitrile and 3-amino-4-phenylphenol solutions with an asymmetric chromophore. On the other hand, the transmitted laser spot has no change in 4, 4'-Biphenol solution, no matter how the laser power density was increased. A distorted beam was observed when the 2-(4-hydroxypheny)-5-pyrimidinol, 4'-hydroxy-4-biphenyl carbonitrile, and 3-amino-4-phenylphenol single crystals were irradiated by high optical power density, while the laser beam spot experienced no change in the 4, 4'-Biphenol single crystal. The different values of the Open/Dark current were about 10 nA in biphenyl derivatives with an asymmetric chromophore. The distorted optical spot stretched along the laser polarization. The threshold value of laser power density for distorted spot was about 100 W/cm² and 10 W/cm² in the solutions and single crystals of biphenyl derivatives with an asymmetric chromophore. An explanation was proposed for the symmetric cyclic bright-dark spatial stripes, being that they were induced by the photorefractive effect. The photorefractive effect relies on the formation of a space-charge field through the illumination of inhomogeneous light intensity patterns. The biphenyl derivatives were found to be photorefractive materials.
- photorefractive effect,
- spatial stripes,
- space charge field,
- biphenyl derivatives

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References(18)

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