高优值系数热电材料研究

材料导报, 2010, 24(3): 60-64.

高优值系数热电材料研究

徐国栋 ^1, , 陈哲 ^2, , 严有为 ^3, , 刘德辉 ^4, , 尹懿 ^5, , 文红民 ^6,

1.南昌工程学院机械系,南昌,330099

2.南昌工程学院机械系,南昌,330099;南京大学物理系,南京,210093;华中科技大学模具技术国家重点实验室,武汉,430074;华东交通大学机电工程学院,南昌,330013

3.华中科技大学模具技术国家重点实验室,武汉,430074

4.南昌工程学院机械系,南昌,330099

5.南昌工程学院机械系,南昌,330099

6.南昌工程学院机械系,南昌,330099

基金项目: 江西省教育厅科技研究计划项目(GJJ09364) 江苏省博士后科研资助计划(0802006B) 教育部人文社会科学规划项目(20080441022) 南昌工程学院青年基金(2008KJ011) 国家自然科学基金(50276023;50574042)

关键词：热电材料 , 热电优值 , 掺杂 , 性能 , 应用

Study on Thermoelectric Materials with High Figure of Merit

XU Guodong ^1, , CHEN Zhe ^2, , YAN Youwei ^3, , LIU Dehui ^4, , YIN Yi ^5, , WEN Hongmin ^6,

1.南昌工程学院机械系,南昌,330099

2.南昌工程学院机械系,南昌,330099;南京大学物理系,南京,210093;华中科技大学模具技术国家重点实验室,武汉,430074;华东交通大学机电工程学院,南昌,330013

3.华中科技大学模具技术国家重点实验室,武汉,430074

4.南昌工程学院机械系,南昌,330099

5.南昌工程学院机械系,南昌,330099

6.南昌工程学院机械系,南昌,330099

Keywords： thermoelectric materials , figure of merit , doping , property , application

热电材料直接将热能与电能进行转换可作为再生能源组件及做成致冷芯片,是一种极具发展前景的能源材料.着重分析了影响热电优值的基本因素,探讨了提高热电优值的3条途径,即对现有材料晶格进行多元掺杂、降低材料维数、研制新型结构材料,并阐述和展望了热电材料在发电和制冷方面的应用前景.

Thermoelectric materials are drawing more attention as renewable energy components and cooling chips because of the problems of energy shortage and environmental pollution.In this paper,the influence factors of thermoelectric figure of merit (ZT) are analyzed and the approaches to improving ZT,including multiple doping,decreasing the material dimension and developing new structural materials,are discussed.The application of thermoelectric materials is also reviewed.

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