Anomalous band bowing in pulsed laser deposited MgxZn1-xO films

被引：19
|
作者：
Agrawal, Arpana [1 ]
Dar, Tanveer Ahmad [1 ]
Phase, D. M. [2 ]
Sen, Pratima [1 ]
机构：
[1] Devi Ahilya Univ, Sch Phys, Indore 452001, Madhya Pradesh, India
[2] UGC DAE Consortium Sci Res, Indore 452001, Madhya Pradesh, India
来源：
JOURNAL OF CRYSTAL GROWTH | 2013年 / 384卷
关键词：
Defects; Doping; X-ray diffraction; Alloy; Oxides; Semiconducting II-VI materials; THIN-FILMS; GAP;
D O I：
10.1016/j.jcrysgro.2013.08.036
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Random variation of band bowing in pulsed laser deposited Mg doped (x=0.090, 0.147, 0.211, 0.268) ZnO thin films was observed. The X-ray diffraction and ultraviolet visible spectroscopy data reveal lattice relaxation and increase in band gap as well as disorclerness in the samples. The X-ray photoelectron spectroscopy data confirm the presence of magnesium and oxygen interstitials (Mg-i and O-i) as well as oxygen vacancies (V-o). The randomness of band bowing is attributed to the presence of these detects. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：9 / 12
页数：4
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