A hierarchically structured Ni(OH)2 monolayer hollow-sphere array and its tunable optical properties over a large region

被引:169
作者
Duan, Guotao [1 ]
Cai, Weiping [1 ]
Luo, Yuanyuan [1 ]
Sun, Fengqiang [1 ]
机构
[1] Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab nanomat & Nanotechnol, Inst Solid State Phys, Hefei 230031, Peoples R China
关键词
D O I
10.1002/adfm.200600568
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The fabrication of a hierarchically structured Ni(OH)(2) monolayer hollow-sphere array with the shell composed of building blocks of nanoflakelets is demonstrated based on a colloidal monolayer and electrochemical deposition. The morphology can be easily controlled by the colloidal monolayer and deposition parameters. Importantly, such monolayer hollow-sphere array shows a morphology- and size-dependent tunable optical transmission stop band. This stop band can be easily tuned from 455-1855 nm by changing the size of the hollow spheres between 1000 and 4500 nm, and also fine-adjusted by changing the deposition time. The array exhibits a nearly incident-angle-independent position of the stop band that 3D photonic crystals do not possess. This structure may have potential applications in optical devices, photonic crystals, and sensors for gas detection.
引用
收藏
页码:644 / 650
页数:7
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