纳米结构
纳米球光刻
等离子体子
材料科学
圆二色性
手性(物理)
圆极化
超材料
纳米技术
平版印刷术
光电子学
表面等离子共振
基质(水族馆)
手征对称性
光学
化学
结晶学
物理
纳米颗粒
制作
替代医学
海洋学
病理
夸克
量子力学
Nambu–Jona Lasinio模型
医学
地质学
微带线
作者
Toru Homma,Naoki Sawada,Takuya Ishida,Tetsu Tatsuma
出处
期刊:ChemNanoMat
[Wiley]
日期:2023-05-19
卷期号:9 (7)
被引量:1
标识
DOI:10.1002/cnma.202300096
摘要
Chiral plasmonic nanostructures can be potentially applied to chiroptical materials and devices, as well as sensors for chiral molecules. When those are applied to metasurfaces or metamaterials, those would be appropriately oriented and aligned. We therefore prepared arrays of chiral plasmonic nanostructures on the basis of bottom-up, self-assembling methods. A triangular Au nanoplate array as an achiral precursor was prepared on a TiO2-coated substrate by nanosphere lithography. The array was irradiated with right- or left-circularly polarized light (CPL) in a solution containing Pb2+ for site-selective deposition of PbO2 in a chiral geometry by plasmon-induced charge separation. The well-aligned Au−PbO2 nanostructure array thus obtained exhibits circular dichroism, and the handedness of the array can be inverted by changing the rotation direction of the irradiated CPL.
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