Microstructure and electrical properties of Mn-doped barium strontium titanate thin films prepared on copper foils
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作者:
Fan, Yanhua
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Shanghai Maritime Univ, Inst Marine Mat Sci & Engn, Shanghai 200135, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Fan, Yanhua
[1
,2
]
Yu, Shuhui
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Yu, Shuhui
[1
]
Sun, Rong
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Sun, Rong
[1
]
Li, Lei
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Li, Lei
[1
]
Yin, Yansheng
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Shanghai Maritime Univ, Inst Marine Mat Sci & Engn, Shanghai 200135, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Yin, Yansheng
[2
]
Wong, Ka-Wai
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Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Wong, Ka-Wai
[3
]
Du, Ruxu
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
Du, Ruxu
[1
]
机构:
[1] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518067, Peoples R China
[2] Shanghai Maritime Univ, Inst Marine Mat Sci & Engn, Shanghai 200135, Peoples R China
[3] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
Ba(0.7-x)Sr(0.3)Mn(x)TiO(3) (x = 0, 0.025, 0.05) thin films have been prepared on copper foils using sol-gel method. The films were processed in an atmosphere with low oxygen pressure so that the substrate oxidation is avoided and the formation of the perovskite phase is allowed. XRD and SEM results showed that Mn doping enhanced the crystallization of the perovskite phase in the films. TheMnsubstitution prevents the reduction of Ti(4+) to Ti(3+), which is supported by XPS analysis. The Ba(0.7-x)Sr(0.3)Mn(x)TiO(3) film with x = 0.025 (BSMT25) exhibits preferred dielectric behavior and a lower leakage current density among the three thin films. The dielectric constant and loss of the BSMT25 film are 1213.5 and 0.065 at 1MHz and around zero field, which are mostly desired for embedded capacitor applications. The mechanism of Mn doping on improving the electrical properties of barium strontium titanate (BST) thin films was investigated. (C) 2010 Elsevier B.V. All rights reserved.
机构:
Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Wang, Liqiu
;
Kang, Hongmin
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Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Kang, Hongmin
;
Xue, Dongfeng
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Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Xue, Dongfeng
;
Liu, Changhou
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Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
机构:
Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Wang, Liqiu
;
Kang, Hongmin
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机构:
Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Kang, Hongmin
;
Xue, Dongfeng
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机构:
Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Xue, Dongfeng
;
Liu, Changhou
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机构:
Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Dalian Univ Technol, Key Lab Micronano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R ChinaDalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China