【摘 要】
：
肖特基结β辐射伏特同位素电池的换能单元由金属电极层和半导体层组成,金属电极层材料的选择对提高电池输出性能有重要的影响.目前,肖特基金属电极材料多集中于Au和Ni两种金属,尚未对不同金属电极材料进行系统的分析对比.针对不同电极材料导电性能的差异,引入电子传输效率因子,从理论上分析对比了Al、Au、Cu、Ni和石墨烯5种电极材料对其制备的肖特基结同位素电池输出性能的影响.基于理论分析,制备Au/硅和石墨烯/硅肖特基结同位素电池并测试了其在63Ni放射源照射下的输出性能,结果表明:石墨烯/硅同位素电池的短路电流
【机 构】
：
湖北科技学院核技术与化学生物学院,湖北咸宁 437100;湖北科技学院辐射化学与功能材料湖北省重点实验室,湖北咸宁 437100;中国科学院合肥物质科学研究院核能安全技术研究所,合肥 230031;湖
论文部分内容阅读
肖特基结β辐射伏特同位素电池的换能单元由金属电极层和半导体层组成,金属电极层材料的选择对提高电池输出性能有重要的影响.目前,肖特基金属电极材料多集中于Au和Ni两种金属,尚未对不同金属电极材料进行系统的分析对比.针对不同电极材料导电性能的差异,引入电子传输效率因子,从理论上分析对比了Al、Au、Cu、Ni和石墨烯5种电极材料对其制备的肖特基结同位素电池输出性能的影响.基于理论分析,制备Au/硅和石墨烯/硅肖特基结同位素电池并测试了其在63Ni放射源照射下的输出性能,结果表明:石墨烯/硅同位素电池的短路电流密度和输出功率密度较Au/硅同位素电池分别提高了约27％和100％,证实了石墨烯作为肖特基结β辐射伏特同位素电池的电极材料具有明显的优势.
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