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

页码：9 / 12

页数：4

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