A new type micro-thermoelectric power generator fabricated by nanowire array thermoelectric material

Wei Wang1, Falong JIa1, Jing Zhu1, Jianzhong Zhang2

1Dept. of Applied Chem., School of Chem. Eng. and Tech., Tianjin University, Tianjin 300072, P. R. China

2Tianjin Institute of Power Sources, Tianjin 300381, P. R. China

Miniaturized solid-state devices such as MEMS, micro-electrical system and even system on a chip are of interest for variety of space and terrestrial applications. For those micro-systems, micro-power sources with low power, high voltage output are necessary. In our Lab., a new type micro-thermoelectric power generator made of N-type and P-type Bi2Te3 nanowire array thermoelectric materials has been designed and fabricated. With a film like configuration of thickness about 100 mm and area about 4 cm2, the micro-thermoelectric power generator can give 1 V output voltage at room temperature and 5 temperature difference. The paper will present the details.