纳米线阵列高效太阳能转换的原理和研究进展  

Research progress on semiconductor nanowires for high efficiency solar energy conversion

作　　者：童中英 谢天 叶新辉 夏辉[2] 李菊柱 张帅君 姜新洋 陈泽中[1] 李天信[2] TONG Zhong-Ying;XIE Tian;YE Xin-Hui;XIA Hui;LI Ju-Zhu;ZHANG Shuai-Jun;JIANG Xin-Yang;CHEN Ze-Zhong;LI Tian-Xin(School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics,Chinese Academy of Sciences, Shanghai 200083, China;Mathematics and Science College, Shanghai Normal University, Shanghai 200234, China;School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China)

机构地区：[1]上海理工大学材料科学与工程学院,上海200093 [2]中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083 [3]上海师范大学数理学院,上海200234 [4]上海科技大学物质科学与技术学院,上海201210

出　　处：《红外与毫米波学报》2019年第4期508-519,527,共13页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(11574336,61604158,91321311);上海市科委基础研究项目(18JC1420401)~~

摘　　要：首先从热力学角度讨论减少太阳能光伏结构效率损失特别是光学熵损失的原理和途径然后介绍半导体纳米线阵列在降低材料使用率的同时有效实现陷光和降低发射角的结构设计其中由直径渐变纳米线形成的非周期阵列具有可见到近红外宽波段的导模共振陷光能力同时极低的发射角大幅度地抑制了自发辐射引起的光子损失成为有望突破 Shockley Queisser 转换效率极限的光伏结构.In this paper, a thermodynamic analysis on current photovoltaics is given within the Shockley-Queisser model. Then the latest progresses of designing semiconductor nanowire arrays are introduced to achieve effective light trapping and reduce emission angle. Among them, non-uniform nanowire arrays with gradient shapes hold both advantages of ultralow emission angle and light trapping, therefore which have attracted much research interest toward ultrahigh efficiency of solar energy conversion from visible to near-infrared wavelength.

关 键 词：太阳能电池 可见至近红外 全向吸收 发射角限制 非均匀纳米线阵列 

分 类 号：TK01[动力工程及工程热物理] TM914.4[电气工程—电力电子与电力传动]