Thermoelectric properties of photo- and thermal CVD boron and boron phosphide films

被引:10
作者
Kumashiro, Y [1 ]
Enomoto, T [1 ]
Sato, K [1 ]
Abe, Y [1 ]
Hirata, K [1 ]
Yokoyama, T [1 ]
机构
[1] Yokohama Natl Univ, Grad Sch Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
关键词
amorphous boron films; polycrystailine boron phosphide films; van der Pauw method; electrical conductivity; thermoelectric power; thermoelectric figure-of-merit;
D O I
10.1016/j.jssc.2003.05.001
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The electrical properties of n-BP films newly prepared by thermal CVD in the B2H6-PH3-H-2 system were improved by a deuterium lamp excitation. High-temperature electrical conductivity and thermoelectric power of amorphous boron and polycrystalline boron phosphide films grown on silica glass were measured to evaluate the thermoelectric figure-of-merit (Z). In particular, the Z-value for photo-thermal BP films was higher (10(-4)/K) than that of boron films, indicating that they are promising for high-temperature thermoelectric materials. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:529 / 532
页数:4
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