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Highly efficient light-trapping structure design inspired by natural evolution.

Recent advances in nanophotonic light trapping open up the new gateway to enhance the absorption of solar energy beyond the so called Yablonovitch Limit. It addresses the urgent needs in developing low cost thin-film solar photovoltaic technologies. However, current design strategy mainly relies on... Full description

Journal Title: Scientific reports 2013, Vol.3, p.1025
Main Author: Wang, Chen
Other Authors: Yu, Shuangcheng , Chen, Wei , Sun, Cheng
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 2045-2322 ; DOI: 10.1038/srep01025
Link: http://search.proquest.com/docview/1273212629/?pq-origsite=primo
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recordid: proquest1273212629
title: Highly efficient light-trapping structure design inspired by natural evolution.
format: Article
creator:
  • Wang, Chen
  • Yu, Shuangcheng
  • Chen, Wei
  • Sun, Cheng
subjects:
  • Biology
ispartof: Scientific reports, 2013, Vol.3, p.1025
description: Recent advances in nanophotonic light trapping open up the new gateway to enhance the absorption of solar energy beyond the so called Yablonovitch Limit. It addresses the urgent needs in developing low cost thin-film solar photovoltaic technologies. However, current design strategy mainly relies on the parametric approach that is subject to the predefined topological design concepts based on physical intuition. Incapable of dealing with the topological variation severely constrains the design of optimal light trapping structure. Inspired by natural evolution process, here we report a design framework driven by topology optimization based on genetic algorithms to achieve a highly efficient light trapping structure. It has been demonstrated that the optimal light trapping structures obtained in this study exhibit more than 3-fold increase over the Yablonovitch Limit with the broadband absorption efficiency of 48.1%, beyond the reach of intuitive designs.
language: eng
source:
identifier: E-ISSN: 2045-2322 ; DOI: 10.1038/srep01025
fulltext: fulltext
issn:
  • 20452322
  • 2045-2322
url: Link


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descriptionRecent advances in nanophotonic light trapping open up the new gateway to enhance the absorption of solar energy beyond the so called Yablonovitch Limit. It addresses the urgent needs in developing low cost thin-film solar photovoltaic technologies. However, current design strategy mainly relies on the parametric approach that is subject to the predefined topological design concepts based on physical intuition. Incapable of dealing with the topological variation severely constrains the design of optimal light trapping structure. Inspired by natural evolution process, here we report a design framework driven by topology optimization based on genetic algorithms to achieve a highly efficient light trapping structure. It has been demonstrated that the optimal light trapping structures obtained in this study exhibit more than 3-fold increase over the Yablonovitch Limit with the broadband absorption efficiency of 48.1%, beyond the reach of intuitive designs.
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