Optimization and temperature effects on sandwich betavoltaic microbattery  

作　　者：LIU YunPeng TANG XiaoBin XU ZhiHeng HONG Liang WANG Peng CHEN Da 

机构地区：[1]Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics

出　　处：《Science China(Technological Sciences)》2014年第1期14-18,共5页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11205088);the Aeronautical Science Foundation of China(Grant No.2012ZB52021);the Funding of Jiangsu Innovation Program for Graduate Education(Grant No.CXZZ12_0146);Fundamental Research Funds for the Central Universities

摘　　要：The design scheme of a sandwich-structure betavoltaic microbattery based on silicon using63Ni is presented in this paper.This structure differs from a monolayer energy conversion unit.The optimization of various physical parameters and the effects of temperature on the microbattery were studied through MCNP.For the proposed optimization design,P-type silicon was used as the substrate for the betavoltaic microbattery.Based on the proposed theory,a sandwich microbattery with a shallow junction was fabricated.The temperature dependence of the device was also measured.The open-circuit voltaic(Voc)temperature dependence of the optimized sandwich betavoltaic microbattery was linear.However,the Voc of the betavoltaic microbattery with a high-resistance substrate exponentially decreased over the range of room temperature in the experiment and simulation.In addition,the sandwich betavoltaic microbattery offered higher power than the monolayer betavoltaic one.The results of this paper provide a significant technical reference for optimizing the design and studying temperature effects on betavoltaics of the same type.

关 键 词：sandwich betavoltaic microbattery temperature effects OPTIMIZATION 

分 类 号：TM919[电气工程—电力电子与电力传动]