Photorefractive Effect of a Liquid Crystal Cell with a ZnO Nanorod Doped in Only One PVA Layer
GUO Yu-Bing1, CHEN Yong-Hai1**, XIANG Ying2, QU Sheng-Chun1, WANG Zhan-Guo1
1Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 2School of Information Engineering, Guangdong University of Technology, Guangzhou 510006
Photorefractive Effect of a Liquid Crystal Cell with a ZnO Nanorod Doped in Only One PVA Layer
GUO Yu-Bing1, CHEN Yong-Hai1**, XIANG Ying2, QU Sheng-Chun1, WANG Zhan-Guo1
1Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 2School of Information Engineering, Guangdong University of Technology, Guangzhou 510006
摘要We observe obviously different diffraction efficiencies with forward and reverse dc voltages in a forced-light-scattering (FLS) experiment for a cell with ZnO nanorod doped in only one poly (vinyl alcohol) (PVA) layer. When a dc voltage with a positive pole on the ZnO nanorod doped side is applied, the excited charge carriers primarily move along the transverse direction, which results in a higher diffraction efficiency. Conversely, when the dc voltage with a negative pole on the ZnO nanorod doped side is applied, the excited charge carriers primarily move along the longitudinal direction, which leads to a lower diffraction efficiency. A largest diffraction efficiency of about 9% is achieved in the ZnO nanorod doped liquid crystal cell.
Abstract：We observe obviously different diffraction efficiencies with forward and reverse dc voltages in a forced-light-scattering (FLS) experiment for a cell with ZnO nanorod doped in only one poly (vinyl alcohol) (PVA) layer. When a dc voltage with a positive pole on the ZnO nanorod doped side is applied, the excited charge carriers primarily move along the transverse direction, which results in a higher diffraction efficiency. Conversely, when the dc voltage with a negative pole on the ZnO nanorod doped side is applied, the excited charge carriers primarily move along the longitudinal direction, which leads to a lower diffraction efficiency. A largest diffraction efficiency of about 9% is achieved in the ZnO nanorod doped liquid crystal cell.
GUO Yu-Bing;CHEN Yong-Hai**;XIANG Ying;QU Sheng-Chun;WANG Zhan-Guo
. Photorefractive Effect of a Liquid Crystal Cell with a ZnO Nanorod Doped in Only One PVA Layer[J]. 中国物理快报, 2011, 28(9): 96101-096101.
GUO Yu-Bing, CHEN Yong-Hai**, XIANG Ying, QU Sheng-Chun, WANG Zhan-Guo
. Photorefractive Effect of a Liquid Crystal Cell with a ZnO Nanorod Doped in Only One PVA Layer. Chin. Phys. Lett., 2011, 28(9): 96101-096101.
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2011, Vol. 28 
