Resonant raman spectroscopy of (Mn,Co)-codoped ZnO films

被引：46

作者：

Du, C. L. ^{[1
]}

Gu, Z. B. ^{[2
]}

You, Y. M. ^{[1
]}

Kasim, J. ^{[1
]}

Yu, T. ^{[1
]}

Shen, Z. X. ^{[1
]}

Ni, Z. H. ^{[1
]}

Ma, Y. ^{[1
]}

Cheng, G. X. ^{[2
]}

Chen, Y. F. ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637616, Singapore

[2] Nanjing Univ, Dept Mat Sci & Engn, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2837110

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resonant Raman spectroscopy studies of (Mn, Co)-codoped ZnO films were carried out using the 325 nm laser as the excitation source. The mixed mode character of the longitudinal optical (LO) phonon reveals that the resonant Raman spectra of the films can be used to test the c-axis orientation degree of their crystallite grains. The ratio of integrated Raman intensities between the 2LO to LO changes as a function of annealing temperatures, which reaches maximum at about 800 degrees C and demonstrates the variation of electron-LO phonon coupling in the films. These can provide helpful information for the fabrication of ZnO based functional films and for the development of their future applications. (C) 2008 American Institute of Physics.

引用

页数：4

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