Bi_(0.5)Sb_(1.5)Te_3/聚苯胺复合材料的制备及电学性能  

PREPARATION AND ELECTRICAL PROPERTIES OF Bi_(0.5)Sb_(l.5)Te_3/POLYANILINE COMPOSITES

作　　者：胡淑红[1] 赵新兵[1] 朱铁军[1] 周邦昌[1] 

机构地区：[1]浙江大学硅材料国家重点实验室,杭州市310027

出　　处：《材料研究学报》2001年第2期260-262,共3页Chinese Journal of Materials Research

基　　金：国家自然科学基金59971044;教育部博士点基金97033518资助项目.

摘　　要：用机械共混法制备了Ｂｉ０．５Ｓｂ１．５Ｔｅ３／聚苯胺复合材料，测量了材料的电学性能参数．与Ｂｉ０．５Ｓｂ１．５Ｔｅ３相比，复合材料的Ｓｅｅｂｅｃｋ系数略有下降．在２９０～３００Ｋ温区内，复合材料的电导率随材料中聚苯胺含量的增加呈线性下降趋势．在室温下，聚苯胺加入量（质量分数）为２％的复合材料，其功率因子比Ｂｉ０．５Ｓｂ１．５Ｔｅ３的低约３０％．Bi0.5 Sb1 .5 Te3 / polyaniline composites were prepared by mechanical blending and the transport properties were measured and investigated. It was found that the Seebeck coefficient of composites was little smaller than that of Bi0.5Sbl.5Te3, while the electrical conductivity decreased linearly with the polyaniline content in temperature range from 290-300K comparing with Bi0.5Sb1.5Te3. The power factor of composites with 2% (mass fraction) polyaniline decreased about 30% comparing with Bi0.5Sb1.5Te3 at room temperature.

关 键 词：机械变混法 聚苯胺 无机/有机复合材料 铋 锑 碲 热电性能 电导率 

分 类 号：TB332[一般工业技术—材料科学与工程]