Flexible Photonic Crystal Fabricated by Two-Dimensional Free-Standing ZnO Nanomesh Arrays
Flexible Photonic Crystal Fabricated by Two-Dimensional Free-Standing ZnO Nanomesh Arrays
复制标题
二维独立式 ZnO 纳米网阵列制造的柔性光子晶体
DOI：
10.1021/jp9113283
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发表时间：
2010-05-27
影响因子：
3.7
通讯作者：
Yu, Jianhui
中科院分区：
文献类型：
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作者：
Fu, Ming;Zhou, Ji;Yu, Jianhui
一个光子带隙被很好地记录为电沉积的独立的ZnO纳米网阵列与可控的方向和高沉积密度。在胶体晶体模板上制备的自支撑ZnO纳米网阵列的光子学特性与传统的反蛋白石不同。从显微光谱中研究了纳米网的突出放大敏感反射峰。与由相同胶体晶体模板制备的反蛋白石相比，纳米网阵列在较短的波长下记录了具有更宽宽度的反射阻带。ZnO纳米网的光致发光在光子带隙波长处被部分抑制。当水流平行于覆盖有纳米网阵列的基底表面流动时，反射带对流速也非常敏感。反射峰随着流速的增加而变蓝。
A photonic band gap is well recorded for electrodeposited free-standing ZnO nanomesh arrays with controllable directions and a high deposition density. The symmetry-dependent photonic property of free-standing ZnO nanomesh arrays, which were fabricated on a colloidal crystal template, is different from that of conventional inverse opals. The prominent magnification-sensitive reflection peak of the nanomeshes is studied from microscopic spectra. A reflection stop band with a broader width is recorded at a shorter wavelength for the nanomesh arrays compared with that for inverse opals fabricated by the same colloidal crystal template. The photoluminescence of ZnO nanomeshes is partly suppressed at the wavelength of the photonic band gap. The reflection band is also very sensitive to the current velocity when water current flows parallel to the surface of the substrate covered with nanomesh arrays. The reflection peaks turn blue as the current velocity increases.