Photorefractive effect of a liquid crystal cell with a ZnO nanorod doped in only one PVA layer

Yu Bing Guo, Yong Hai Chen*, Ying Xiang, Sheng Chun Qu, Zhan Guo Wang

*Corresponding author for this work

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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.

Original languageEnglish
Article number096101
JournalChinese Physics Letters
Volume28
Issue number9
DOIs
Publication statusPublished - Sept 2011
Externally publishedYes

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Guo, Y. B., Chen, Y. H., Xiang, Y., Qu, S. C., & Wang, Z. G. (2011). Photorefractive effect of a liquid crystal cell with a ZnO nanorod doped in only one PVA layer. Chinese Physics Letters, 28(9), Article 096101. https://doi.org/10.1088/0256-307X/28/9/096101