Type I and type II band alignments in ZnO/MgZnO bilayer 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
关键词
TEMPERATURE; VALENCE;
D O I
10.1063/1.4893986
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the change in the type of band alignments due to an increase in the dopant (Mg) concentration in pulsed laser deposited ZnO/MgZnO bilayer film. The band offset measurements were carried out from the core level shifts as well as valence band maxima in the single as well as the bilayer films. The change in the type of band alignment is attributed to the surface enrichment of Mg at the heterojunction. (C) 2014 AIP Publishing LLC.
引用
收藏
页数:4
相关论文
共 19 条
[1]   Transport and magnetotransport study of Mg doped ZnO thin films [J].
Agrawal, Arpana ;
Dar, Tanveer A. ;
Sen, Pratima ;
Phase, Deodatta M. .
JOURNAL OF APPLIED PHYSICS, 2014, 115 (14)
[2]   Anomalous band bowing in pulsed laser deposited MgxZn1-xO films [J].
Agrawal, Arpana ;
Dar, Tanveer Ahmad ;
Phase, D. M. ;
Sen, Pratima .
JOURNAL OF CRYSTAL GROWTH, 2013, 384 :9-12
[3]  
Agrawal G P, 2002, FIBER OPTIC COMMUNIC, P144
[4]   Band offset measurements and magneto-transport properties of epitaxial TiO2-x (x=0.05)/La0.7Sr0.3MnO3 heterostructure [J].
Choudhary, R. J. ;
Bapna, Komal ;
Phase, D. M. .
APPLIED PHYSICS LETTERS, 2013, 102 (14)
[5]   Valence and conduction band offset measurements in Ni0.07Zn0.93O/ZnO heterostructure [J].
Dar, Tanveer Ahmad ;
Agrawal, Arpana ;
Misra, Pankaj ;
Kukreja, Lalit M. ;
Sen, Pranay Kumar ;
Sen, Pratima .
CURRENT APPLIED PHYSICS, 2014, 14 (02) :171-175
[6]  
Dasgupta P., 2011, MATER LETT, V65, P2073
[7]   Visual-infrared electroluminescence emission from ZnO/GaAs heterojunctions grown by metal-organic chemical vapor deposition [J].
Du, Guotong ;
Cui, Yongguo ;
Xia, Xiaochuan ;
Li, Xiangping ;
Zhu, Huichao ;
Zhang, Baolin ;
Zhang, Yuantao ;
Ma, Yan .
APPLIED PHYSICS LETTERS, 2007, 90 (24)
[8]  
Fadley C. S., 1978, ELECT SPECTROSCOPY T, P80
[9]   Absolute deformation potentials and band alignment of wurtzite ZnO, MgO, and CdO [J].
Janotti, Anderson ;
Van de Walle, Chris G. .
PHYSICAL REVIEW B, 2007, 75 (12)
[10]   Fundamentals of zinc oxide as a semiconductor [J].
Janotti, Anderson ;
Van de Walle, Chris G. .
REPORTS ON PROGRESS IN PHYSICS, 2009, 72 (12)