Polarized cathodoluminescence study of InP nanowires by transmission electron microscopy

被引：22
|
作者：
Yamamoto, N [1 ]
Bhunia, S
Watanabe, Y
机构：
[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan
[2] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 15期
关键词：
D O I：
10.1063/1.2168043
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Cathodoluminescence (CL) spectra and polarized monochromatic CL images of InP nanowires were studied using a transmission electron microscope combined with a CL detection system. Emission spectra from individual nanowires showed a broad single peak with a peak energy of 1.6 eV, which is higher than expected from the quantum confinement effect for an average nanowire with a diameter of 20 nm. An individual nanowire could be resolved in the monochromatic CL images. The emission is highly polarized along the wire axis with a degree of polarization of more than 50%.
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页数：3
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