基于β辐射伏特效应的同位素微电池理论模型研究  

Theoretical Model Study of Radioisotope Microbattery Based on β-Radio-Voltaic Effect

作　　者：褚金奎[1] 朴相镐[1] 吴红超[1] 

机构地区：[1]大连理工大学精密与特种加工教育部重点实验室,116023

出　　处：《核动力工程》2006年第6期113-118,共6页Nuclear Power Engineering

基　　金：国家自然科学基金项目(50475153);教育部新世纪优秀人才支持计划项目(NCET-04-0266)

摘　　要：随着微型机械电子系统(MEMS)的发展,微能源逐渐成为MEMS应用中的一个非常关键的问题。在同时考虑了同位素的选择及其衰变类型、粒子能谱、放射粒子能量损失率、半导体特性、载流子的产生与复合等因素的基础上,提出了一个基于β辐射伏特效应的同位素微电池的理论模型。可以用该模型计算出微电池的短路电流和开路电压。得到的模拟结果比引用文献结果稍高,还得到了表面掺杂浓度、结深以及放射粒子活度对电池输出参数的影响。As the developing of MEMS （micro electromechanical system）, micropower becomes a very key problem in MEMS application gradually. The paper accounts simultaneously for the Choice and decay type of isotope, particle energy spectrum, the energy loss rate of emitted particle in the mass, semiconductor characteristic and generation and recombination of carriers and sets up a theoretical model of radioisotope microbattery based on β-radio-voltaic effect, The model can calculate short circuit current and open circuit voltage of microbattery. The simulated result is slightly bigger than literature results; doped density of diffusion layer, the diffusion depth and radiation particle activity respectively influences export parameters of battery. The model is considerably instructional and useful for developing microbatterv.

关 键 词：微同位素电池 微型机械电子系统 理论模型 

分 类 号：TL81[核科学技术—核技术及应用]