Influence of lead concentration on morphology and optical properties of Pb-doped ZnO nanowires

被引：42

作者：

Yousefi, Ramin ^{[1
]}

Jamali-Sheini, Farid ^{[2
]}

Sa'aedi, Abdolhossain ^{[3
]}

Zak, A. Khorsand ^{[4
]}

Cheraghizade, Mohsen ^{[3
]}

Pilban-Jahromi, Siamak ^{[5
]}

Huang, Nay Ming ^{[5
]}

机构：

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

[2] Islamic Azad Univ, Ahwaz Branch, Dept Phys, Ahvaz, Iran

[3] Islamic Azad Univ, Bushehr Branch, Dept Elect Engn, Bushehr, Iran

[4] Ferdowsi Univ Mashhad, Fac Sci, Dept Phys, Mat & Electroceram Lab, Mashhad, Iran

[5] Univ Malaya, Fac Sci, Dept Phys, Low Dimens Mat Res Ctr, Kuala Lumpur 50603, Malaysia

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期

关键词：

Optical properties; Pb-doped ZnO nanowires; Thermal evaporation; NANOSTRUCTURES; GROWTH; FILMS;

D O I：

10.1016/j.ceramint.2013.05.008

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Undoped and Pb-doped ZnO nanowires with different lead concentrations were grown on Si(111) substrates using a thermal evaporation method. Scanning electron microscopy (SEM) results showed that, the undoped ZnO nanowires were well aligned with uniform diameters and lengths. On the other hand, the Pb-doped ZnO nanowires were tapered and not aligned in a unique direction. X-ray diffraction patterns and Raman measurements clearly indicated hexagonal structures for all of the products. In addition, the Raman results demonstrated that the Pb-doped ZnO nanowires had a lower crystalline quality than the undoped ZnO nanowires. Photoluminescence (PL) studies also confirmed the Raman results and showed a lower optical property for the Pb-doped ZnO nanowires compared to the undoped ZnO nanowires. Moreover, the PL results showed a smaller band-gap for the Pb-doped ZnO nanowires compared to the undoped ZnO. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：9115 / 9119

页数：5

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