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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