Exceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedles

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103395

Title:	Exceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedles
Authors:	賴昆佑;Yeh, Li-Ko;Tian, Wei-Cheng;Lai, Kun-Yu;He, Jr-Hau
Contributors:	理學院光電科學與工程學系
Keywords:	639/301/1019;639/925/357;Ascorbic acid;Humanities and Social Sciences;multidisciplinary;Photovoltaic cells;Science;Solar cells
Date:	2016-12-14
Issue Date:	2026-04-23 11:29:38 (UTC+8)
Publisher:	Nature Publishing Group;London: Nature Publishing Group UK
Abstract:	摘要： GaInP/GaAs/Ge triple-junction concentrator solar cells with significant efficiency enhancement were demonstrated with antireflective ZnO nanoneedles. The novel nanostructure was attained with a Zn(NO 3 ) 2 -based solution containing vitamin C. Under one sun AM 1.5G solar spectrum, conversion efficiency of the triple-junction device was improved by 23.7% via broadband improvement in short-circuit currents of 3 sub-cells after the coverage by the nanoneedles with a graded refractive index profile. The efficiency enhancement further went up to 45.8% at 100 suns. The performance boost through the nanoneedles also became increasingly pronounced in the conditions of high incident angles and the cloudy weather, e.g. 220.0% of efficiency enhancement was observed at the incident angle of 60°. These results were attributed to the exceptional broadband omnidirectionality of the antireflective nanoneedles. 其他題名： Sci Rep 出版者： London: Nature Publishing Group UK 出版日期： 2016-12-14 出處： Scientific reports, 2016-12, Vol.6 (1), p.39134-39134, Article 39134 資源來源： Publicly Available Content Database (Proquest) 版權： The Author(s) 2016 版權： Copyright Nature Publishing Group Dec 2016 版權： Copyright © 2016, The Author(s) 2016 The Author(s) 識別號： ISSN: 2045-2322 識別號： EISSN: 2045-2322 識別號： DOI: 10.1038/srep39134 識別號： PMID: 27966621
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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