文献类型：期刊文献

英文题名：Replication of Leaf Surface Structures for Light Harvesting

作者：Huang, Zhongjia[1];Yang, Sai[1];Zhang, Hui[2,3];Zhang, Meng[4];Cao, Wei[5]

机构：[1]Anhui Polytech Univ, Sch Mech & Automot Engn, Wuhu 241000, Peoples R China;[2]Soochow Univ, Western Univ Ctr Synchrotron Radiat Res, Inst Funct Nano & Soft Mat FUNSOM, 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, FIN-90014 Oulu, Finland

年份：2015

卷号：5

外文期刊名：SCIENTIFIC REPORTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000361375700001)】；

基金：We acknowledge financial supports from the National Natural Science Foundation of China (No. 51205001, No. 11204079), Magnus Ehrnrooth Foundation, and Oulu University Strategic Grant.

语种：英文

摘要：As one of the most important hosts of natural light harvesting, foliage normally has complicated surface structures to capture solar radiances. Bio-mimicking leaf surface structures can provide novel designs of covers in photovoltaic systems. In this article, we reported on replicating leaf surface structures on poly-(methyl methacrylate) polymers to prompt harvesting efficiencies. Prepared via a double transfer process, the polymers were found to have high optical transparencies and transmission hazes, with both values exceeding 80% in some species. Benefiting from optical properties and wrinkled surfaces, the biomimetic polymers brought up to 17% gains to photovoltaic efficiencies. Through Monte-Carlo simulations of light transport, ultrahigh haze values and low reflections were attributed to lightwave guidance schemes lead by the nano-and micro-morphologies which are inherited from master leaves. Thus, leaf surface bio-mimicking can be considered as a strategic direction to design covers of light harvesting systems.