Comparison of time-related electrical properties of PN junctions and Schottky diodes for Zn O-based betavoltaic batteries  

作　　者：Xiao-Yi Li Jing-Bin Lu Ren-Zhou Zheng Yu Wang Xu Xu Yu-Min Liu Rui He 

机构地区：[1]College of Physics,Jilin University,Changchun 130012,China [2]East China University of Technology,Nanchang 330013,China

出　　处：《Nuclear Science and Techniques》2020年第2期55-66,共12页核技术（英文）

基　　金：supported by the National Major Scientific Instruments and Equipment Development Projects(No.2012YQ240121);National Natural Science Foundation of China(No.11075064)

摘　　要：Schottky diodes and PN junctions were utilized as energy converting structures in ZnO-based betavoltaic batteries,in which 0.101121 Ci 63Ni was selected as the beta source.The time-related electrical properties were obtained using Monte Carlo simulations.For the n-type ZnO,the Pt/ZnO Schottky diode had the highest energy conversion efficiency,and the Ni/ZnO Schottky diode had the largest Isc.The overall electrical performance of PN junctions is better than that of Schottky diodes.The lifetimes of Pt/ZnO and Ni/ZnO are longer than for other Schottky devices,coming close to those of PN junctions.Considering that Schottky diodes are easier to fabricate and independent of p-type semiconductors,Pt/ZnO and Ni/ZnO diodes offer alternatives to PN-junction-based betavoltaic batteries.Schottky diodes and PN junctions were utilized as energy converting structures in ZnO-based betavoltaic batteries, in which 0.101121 Ci 63Ni was selected as the beta source. The time-related electrical properties were obtained using Monte Carlo simulations. For the n-type ZnO, the Pt/ZnO Schottky diode had the highest energy conversion efficiency, and the Ni/ZnO Schottky diode had the largest Isc. The overall electrical performance of PN junctions is better than that of Schottky diodes. The lifetimes of Pt/ZnO and Ni/ZnO are longer than for other Schottky devices, coming close to those of PN junctions.Considering that Schottky diodes are easier to fabricate and independent of p-type semiconductors, Pt/ZnO and Ni/ZnO diodes offer alternatives to PN-junction-based betavoltaic batteries.

关 键 词：Beta voltaic effect Zinc oxide Time-related properties PN junction Schottky diode Monte Carlo simulation 

分 类 号：TN311.7[电子电信—物理电子学] TM918[电气工程—电力电子与电力传动]