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Elaboration of Bi2Te3 by metal organic chemical vapor deposition
被引:57
|作者:
Giani, A
[1
]
PascalDelannoy, F
[1
]
Boyer, A
[1
]
Foucaran, A
[1
]
Gschwind, M
[1
]
Ancey, P
[1
]
机构:
[1] IMRA EUROPE SA,F-06904 SOPHIA ANTIPOLIS,FRANCE
关键词:
chemical vapour deposition;
bismuth;
tellurium;
D O I:
10.1016/S0040-6090(97)00089-8
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Bi2Te3 layers were elaborated for the first time using metal organic chemical vapor deposition. The films composition is stoichiometric when the following conditions are verified: substrate temperature lower than 500 degrees C, VI/V ratio greater than 3, TMBi partial pressure lower than 2 x 10(-4) atm. By X-ray diffraction and MEB observation, we noticed the polycrystalline structure of the layers. The high thermoelectric power (+190 mu V K-1 for the p-type layer and -94 mu V K-1 for the n-type layer) of this material is promising for device applications. (C) 1997 Elsevier Science S.A.
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页码:1 / 3
页数:3
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