液晶
材料科学
单层
光电子学
双折射
等离子体子
光学
电介质
透射率
纳米技术
物理
作者
Ayana Mizuno,Yosei Shibata,Hideo Fujikake,Akira Ono
出处
期刊:ACS omega
[American Chemical Society]
日期:2023-10-28
卷期号:8 (44): 41579-41585
标识
DOI:10.1021/acsomega.3c05707
摘要
We experimentally demonstrated electrical plasmonic color modulation by combining a nematic-phase liquid crystal (LC) layer and a silver nanocube (AgNC) monolayer. The color modulation LC/AgNC device was fabricated by filling LCs with negative dielectric anisotropy onto a densely assembled AgNC monolayer. The transmitted light color through the LC/AgNC device was modulated between green and magenta by applying voltages of 0-15 V. The peaks and dips in the transmission spectrum of the LC/AgNC device at wavelengths of 500-600 nm were switched with voltage. The switching effect of light transmission in the green region was achieved by overlapping the plasmon resonance of the AgNC monolayer and multiple transmittance peaks caused by the birefringence of the LC layer. In addition, the color inversion appeared at cross-Nicole and parallel-Nicole because the LC layer functioned like a half-wave plate due to birefringence. The electrical modulation of the plasmonic color with LCs has a high implementation capability in microdevices and is anticipated to be applied in display devices or color filters.
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