Effects of Cu doping on the structure, electronic and optical properties of SnO2 thin films by spray pyrolysis: An experimental and density functional study
被引:29
作者:
Chen, Aqing
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Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Chen, Aqing
[1
]
Xia, Shengjian
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Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Xia, Shengjian
[1
]
Ji, Zhenguo
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机构:
Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Ji, Zhenguo
[1
]
Xi, Junhua
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Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Xi, Junhua
[1
]
Qin, Haiying
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Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Qin, Haiying
[1
]
Mao, Qinan
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Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Mao, Qinan
[1
]
机构:
[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Cu doped SnO2;
Optical band gap;
Spray pyrolysis;
Density functional theory;
INDIUM-TIN OXIDE;
WORK FUNCTION;
BAND-GAP;
LEVEL;
LAYER;
MO;
D O I:
10.1016/j.surfcoat.2017.05.026
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Cu doped SnO2 thin films have been prepared by spray pyrolysis methods. The optical band gap increases with the concentration of Cu dopants while the crystallite size of SnO2 decreases with the Cu doping concentration. X-ray diffraction analysis shows that Cu doped SnO2 thin films display the preferred growth along (110) plane at a high Cu concentration. X-ray photoelectron spectroscopy shows that Cu2+ is observed in the SnO2 thin films at a low Cu doped concentration and transforms into Cu+ at a high Cu concentration and that oxygen vacancies decrease with the Cu doping concentration. Density functional theory calculation reveals that the crystal lattice constant of Cu doped SnO2 is smaller than the principle SnO2 leading to the increase in the band gap. Our results give a significant basic theory on the Cu doped SnO2 thin films which will be promising materials for optoelectronic devices due to the remarkable photoelectrical properties. (C) 2017 Elsevier B.V. All rights reserved.
机构:
Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Zhu, Kaigui
;
Shao, Qingyi
论文数: 0引用数: 0
h-index: 0
机构:
S China Normal Univ, Sch Telecommun Engn, Guangzhou 510006, Guangdong, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Shao, Qingyi
;
Ji, Zhenguo
论文数: 0引用数: 0
h-index: 0
机构:
Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R China
Leshan Vocat & Tech Coll, Sch New Energy Engn, Leshan 614000, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R China
Leshan Vocat & Tech Coll, Sch New Energy Engn, Leshan 614000, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Zhu, Kaigui
;
Zhong, Huicai
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Zhong, Huicai
;
Shao, Qingyi
论文数: 0引用数: 0
h-index: 0
机构:
S China Normal Univ, Sch Phys & Telecommun Engn, Lab Quantum Informat Technol, Guangzhou 510006, Guangdong, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Shao, Qingyi
;
Ge, Guanglu
论文数: 0引用数: 0
h-index: 0
机构:
Natl Ctr Nanosci & Technol, Lab Nanostanderizat, Beijing 100190, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
机构:
Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India
Das, Soumen
;
Jayaraman, V.
论文数: 0引用数: 0
h-index: 0
机构:
Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India
机构:
Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Zhu, Kaigui
;
Shao, Qingyi
论文数: 0引用数: 0
h-index: 0
机构:
S China Normal Univ, Sch Telecommun Engn, Guangzhou 510006, Guangdong, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
Shao, Qingyi
;
Ji, Zhenguo
论文数: 0引用数: 0
h-index: 0
机构:
Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaHangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R China
Leshan Vocat & Tech Coll, Sch New Energy Engn, Leshan 614000, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R China
Leshan Vocat & Tech Coll, Sch New Energy Engn, Leshan 614000, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Chen, Aqing
;
Zhu, Kaigui
论文数: 0引用数: 0
h-index: 0
机构:
Beihang Univ, Dept Phys, Beijing 100191, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Zhu, Kaigui
;
Zhong, Huicai
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Zhong, Huicai
;
Shao, Qingyi
论文数: 0引用数: 0
h-index: 0
机构:
S China Normal Univ, Sch Phys & Telecommun Engn, Lab Quantum Informat Technol, Guangzhou 510006, Guangdong, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
Shao, Qingyi
;
Ge, Guanglu
论文数: 0引用数: 0
h-index: 0
机构:
Natl Ctr Nanosci & Technol, Lab Nanostanderizat, Beijing 100190, Peoples R ChinaBeihang Univ, Dept Phys, Beijing 100191, Peoples R China
机构:
Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India
Das, Soumen
;
Jayaraman, V.
论文数: 0引用数: 0
h-index: 0
机构:
Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India