Optical and electrical properties of (V2O5)1-x-(MoO3)x thin films

被引：0
|
作者：
Madhuri, K.V. [1 ]
Srinivasa Rao, K. [1 ]
Uthanna, S. [1 ]
Naidu, B.S. [1 ]
Hussain, O.M. [1 ]
机构：
[1] Thin Film Laboratory, Department of Physics, S. V. University, Tirupati 517 502, India
来源：
Journal of the Indian Institute of Science | 2001年 / 81卷 / 06期
关键词：
Electric conductivity of solids - Electron beams - Energy gap - Evaporation - Film preparation - Light absorption - Molybdenum compounds - Optical properties - Partial pressure - Substrates - Temperature - Vanadium compounds;
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摘要：
Thin films of (V2O5)1-x-(MoO3)x (O&le×&le1) were prepared by electron beam evaporation technique in an oxygen partial pressure of 2 × 10-4 mbar and at a substrate temperature of 423 K. The optical absorption data in the range 300-1500 nm suggests that the optical bandgap increases with increase in the composition of x and shows a curvilinear behaviour. Electrical conductivity decreased with increase in the composition of x. The temperature dependence of electrical conductivity obeys T-1/4 law.
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页码：653 / 658
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