一种新方法制备硅/聚(3,4-乙撑二氧噻吩)核/壳纳米线阵列杂化太阳能电池  

A new approach to fabricating silicon nanowire/poly(3,4-ethylenedioxythiophene)hybrid heterojunction solar cells

作　　者：李小娟[1,2] 韦尚江[1,2] 吕文辉[3] 吴丹[2] 李亚军[2] 周文政[1] 

机构地区：[1]广西大学物理科学与工程技术学院,南宁530004 [2]中国科学院苏州纳米技术与纳米仿生研究所国际实验室,苏州215125 [3]湛江师范学院物理科学与技术学院,湛江524048

出　　处：《物理学报》2013年第10期451-456,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:61204068;51003119;51003120;60906045)资助的课题~~

摘　　要：采用气相聚合法制备了有机/无机杂化的硅/聚3,4-乙撑二氧噻吩核/壳纳米线阵列(SiNWs/PEDOT)太阳能电池.相对平面结构Si/PEDOT太阳能电池,SiNWs/PEDOT太阳能电池的能量转换效率提升了7倍,达到3.23%.对比分析反射光谱、I-V曲线及外量子效率的实验结果,发现SiNWs/PEDOT太阳能电池性能改进的主要原因可归结为:气相聚合法能够有效地制备出SiNWs/PEDOT电池的核/壳纳米线阵列结构,使得器件具有高光捕获、高比结面积和高电荷收集效率.The silicon/poly（3,4-ethylenedioxythiophene）core/shell organic/inorganic nanowire array（SiNWs/PEDOT）hybrid heterojunction solar cells are successfully fabricated by silver-assisted chemical etching method and vapor phase polymerization processes.The SiNWs/PEDOT hybrid solar cell shows that the performance is improved greatly and an excellent power conversion efficiency of 3.23% is achieved,which is as seven times as large as that of the planar cell without the nanowire structure.In addition,the studies of the reflectance,the I-V curve and the external quantum efficiency show that the great enhancement of performance for the SiNWs/PEDOT cell is due to the fact that the Si/PEDOT core/shell nanowire structure is successfully fabricated by vapor phase polymerization method,resulting in a high light trapping effect,a large junction area and an enhancement of the carrier collection efficiency.

关 键 词：SI PEDOT核 壳纳米线结构 太阳能电池 气相聚合 

分 类 号：TM914.4[电气工程—电力电子与电力传动]