红外与毫米波学报, 2019, 38 (4): 04508, 网络出版: 2019-10-14
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
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 solar cells visible to near-infrared omnidirectional absorbtion emission angle limit non-uniform nanowire arrays
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.
Abstract
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.
童中英, 谢天, 叶新辉, 夏辉, 李菊柱, 张帅君, 姜新洋, 陈泽中, 李天信. 纳米线阵列高效太阳能转换的原理和研究进展[J]. 红外与毫米波学报, 2019, 38(4): 04508. 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. Research progress on semiconductor nanowires for high efficiency solar energy conversion[J]. Journal of Infrared and Millimeter Waves, 2019, 38(4): 04508.