文献类型：期刊文献

英文题名：A computational study of antireflection structures bio-mimicked from leaf surface morphologies

作者：Huang, Zhongjia[1];Shi, Tao[1];Zhang, Hui[2,3];Zhang, Meng[4];Huttula, Marko[5];Cao, Wei[5]

机构：[1]Anhui Polytech Univ, Sch Mech & Automot Engn, Wuhu 241000, Peoples R China;[2]Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Soochow Univ Western Univ Ctr Synchrotron Radiat, Suzhou 215123, Peoples R China;[3]Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215123, Peoples R China;[4]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[5]Univ Oulu, Res Ctr Mol Mat, POB 3000, FIN-90014 Oulu, Finland

年份：2016

卷号：131

起止页码：131

外文期刊名：SOLAR ENERGY

收录：;EI(收录号：20161002061748);WOS:【SCI-EXPANDED(收录号:WOS:000375811400012)】；

基金：We acknowledge financial supports from the National Natural Science Foundation of China (Nos. 51205001 and 11204079), Research Council of Natural Sciences of the Suomen Akatemia, and Oulu University Strategic Grant.

语种：英文

外文关键词：Foliage biomimetic; Antireflection patterning; Numerical simulation

摘要：Conversions of solar energy can be realized artificially through photocells or naturally through foliage. In this article, we reported on designs of photocell antireflection (AR) patterns bio-mimicked from leaf surface morphologies. Numerical simulations of light transport were performed on photocell modules where the glass covers above the silicon slabs were patterned with two bionic structures of micro hemispheres and pyramids. Backscattering of the light decreased considerably on the Si surface after introductions of the AR structures. The hemispheres possess better AR abilities than the pyramid counterparts when incident light shines at a tilted angle. Introducing nano structures on microspheres will further benefit the AR, with the nanorods lower more reflection rates than the nanodots gratings. Within the same morphology of nanorods decorated microspheres, the hemisphere of 3.0 pm diameter was found to have the best AR performances. Benefiting from the natural varieties of foliage surface structures, the present biomimetic route is hoped to serve as a start point for the AR cover designs in experimental realizations and theoretical predictions. (C) 2016 Elsevier Ltd. All rights reserved.