Imaging single ZnO vertical nanowire laser cavities using UV-laser scanning confocal microscopy.
Imaging single ZnO vertical nanowire laser cavities using UV-laser scanning confocal microscopy.
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DOI：
10.1021/ja8092339
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发表时间：
2009-01
影响因子：
15
通讯作者：
D. Gargas;M. Toimil-Molares;P. Yang
中科院分区：
文献类型：
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作者：
D. Gargas;M. Toimil-Molares;P. Yang
我们报告了单个ZnO垂直纳米线激光腔的制造和光学表征。通过改进的化学气相传输（CVT）方法制备了线间距>10微米的稀纳米线阵列，为单纳米线成像和光谱学提供了理想的平台。介绍了单根垂直纳米线的激光特性，以及紫外激光扫描共聚焦显微镜的高分辨率光致发光成像。此外，在平面和垂直维度上进行的光致发光发射的三维（3D）映射展示了可用于光电子学和纳米光子学领域中出现的垂直纳米线和异质纳米结构的高度选择性成像。
We report the fabrication and optical characterization of individual ZnO vertical nanowire laser cavities. Dilute nanowire arrays with interwire spacing >10 microm were produced by a modified chemical vapor transport (CVT) method yielding an ideal platform for single nanowire imaging and spectroscopy. Lasing characteristics of a single vertical nanowire are presented, as well as high-resolution photoluminescence imaging by UV-laser scanning confocal microscopy. In addition, three-dimensional (3D) mapping of the photoluminescence emission performed in both planar and vertical dimensions demonstrates height-selective imaging useful for vertical nanowires and heteronanostructures emerging in the field of optoelectronics and nanophotonics.