Photocurrent application of Cd-doped ZnTe nanowires grown in a large scale by a CVD method

被引：15

作者：

Baghchesara, Mohammad Amin ^{[1
]}

Yousefi, Ramin ^{[2
]}

Cheraghizade, Mohsen ^{[3
]}

Jamali-Sheini, Farid ^{[4
]}

Sa'aedi, Abdolhossein ^{[3
]}

机构：

[1] Islamic Azad Univ, Dept Met & Mat Engn, Masjed Soleiman Branch, Masjed Soleiman, Iran

[2] Islamic Azad Univ, Dept Phys, Masjed Soleiman Branch, Masjed Soleiman, Iran

[3] Islamic Azad Univ, Young Researchers & Elite Club, Ahvaz Branch, Ahvaz, Iran

[4] Islamic Azad Univ, Dept Phys, Ahvaz Branch, Ahvaz, Iran

来源：

VACUUM | 2016年 / 123卷

关键词：

Cd-doped ZnTe nanowires; Optical properties; Photocurrent; Green emission; OPTICAL-PROPERTIES; MORPHOLOGY;

D O I：

10.1016/j.vacuum.2015.10.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photocurrent applications of undoped and Cd-doped ZnTe nanowires, which were grown by tellurization of zinc sheets in a chemical vapor deposition (CVD) set-up, were investigated. The zinc sheets were placed in three temperature zones in a tube furnace. Field emission scanning electron microscope (FESEM) images showed that, temperature, tellurium, and cadmium concentration are three important factors to obtain different morphologies. The phase and composition of the product were identified by Xray diffraction (XRD) pattern and X-ray photoelectron spectra (XPS). Photoluminescence (PL) studies of these nanowires produced a strong photoluminescence (PL) emission peak in the green region and a weak peak in the red region of the electromagnetic spectrum. Finally, the ZnTe nanowires were used as photocurrent by a green light source. The photocurrent studies of the samples showed that, the Cd-doped ZnTe nanowires are better detector in comparison to the undoped ZnTe nanowires in the green region of the electromagnetic spectrum. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：131 / 135

页数：5

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