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dc.contributor.authorYeh, Li-Ko
dc.contributor.authorTian, Wei-Cheng
dc.contributor.authorLai, Kun-Yu
dc.contributor.authorHe, Jr-Hau
dc.date.accessioned2016-12-15T08:40:34Z
dc.date.available2016-12-15T08:40:34Z
dc.date.issued2016-12-14
dc.identifier.citationYeh L-K, Tian W-C, Lai K-Y, He J-H (2016) Exceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedles. Scientific Reports 6: 39134. Available: http://dx.doi.org/10.1038/srep39134.
dc.identifier.issn2045-2322
dc.identifier.doi10.1038/srep39134
dc.identifier.urihttp://hdl.handle.net/10754/622024
dc.description.abstractGaInP/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(NO3)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.
dc.description.sponsorshipThis work was supported by the baseline fund of King Abdullah University of Science & Technology (KAUST), and the Ministry of Science and Technology in Taiwan (Grant MOST105-3113-E-008-008-CC2 and MOST 105-2221-E-008-064).
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/srep39134
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMaterials for optics
dc.subjectNanoscale materials
dc.titleExceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedles
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalScientific Reports
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionGraduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
dc.contributor.institutionDepartment of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan, ROC
kaust.personYeh, Li-Ko
kaust.personHe, Jr-Hau
refterms.dateFOA2018-06-13T13:59:04Z


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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/