PEDOT:PSS（聚3,4-乙撑二氧噻吩/聚苯乙烯磺酸盐）/Bi0.5Sb1.5Te3复合材料热电性能研究  

Remarkably Enhanced Thermoelectric Properties of PEDOT:PSS/Bi0.5Sb1.5Te3 Composites

作　　者：周颖[1,2] 甘国友 易建宏[1] 冯晶[1] 师晓莉[1] 葛振华 Zhou Ying;Gan Guoyou;Yi Jianhong;Feng Jing;Shi Xiaoli;Ge Zhenhua(Kunming University of Science and Technology,Kunming 650093,China;Yunnan Provincial Institute of Science and Technology,Kunming 650000,China)

机构地区：[1]昆明理工大学,云南昆明650093 [2]云南省科学技术院,云南昆明650000

出　　处：《稀有金属材料与工程》2019年第12期4088-4092,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金（51501086）;云南省教育厅科学研究基金（2017ZZX134）

摘　　要：将PEDOT:PSS(聚3,4-乙撑二氧噻吩/聚苯乙烯磺酸盐)与Bi0.5Sb1.5Te3粉末混合烘干,在液氮下研磨成粉,将粉末经过热压工艺致密化,制备复合热电材料。通过XRD和FESEM表征复合热电材料的相结构和微观形貌,对复合热电材料的热电性能和电传输性能进行测试,结果表明:在75℃时,质量分数为90%的Bi0.5Sb1.5Te3复合PEDOT:PSS样品ZT值为0.1,比纯PEDOT:PSS样品高出40倍;复合材料样品Seebeck系数随着Bi0.5Sb1.5Te3的增加大幅提升,无机相连续分布是提高复合材料Seebeck系数的关键。The PEDOT:PSS/Bi0.5 Sb1.5 Te3 powder was prepared by a solution phase process and ground in liquid N2. Then the powder was densified by hot press. The polymer composite powder was reformed to polymer bulk. The phase structure and microstructure were investigated by XRD and FESEM. The electrical transport properties and thermal conductivity were measured. The results show that 90%(mass fraction) Bi0.5 Sb1.5 Te3 with PEDOT:PSS specimen gets the highest ZT value of 0.1 at 75 °C which is 40 times higher than that of pristine PEDOT:PSS specimen. The Seebeck coefficient is greatly improved with the increase of Bi0.5 Sb1.5 Te3 content. The continuous distribution of inorganic phases is the key to improve Seebeck coefficient of composites.

关 键 词：PEODT:PSS 复合热电材料 SEEBECK系数 

分 类 号：TQ317.3[化学工程—高聚物工业]