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

Handle URI:
http://hdl.handle.net/10754/622024
Title:
Exceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedles
Authors:
Yeh, Li-Ko; Tian, Wei-Cheng; Lai, Kun-Yu; He, Jr-Hau ( 0000-0003-1886-9241 )
Abstract:
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(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.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Yeh 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.
Publisher:
Springer Nature
Journal:
Scientific Reports
Issue Date:
14-Dec-2016
DOI:
10.1038/srep39134
Type:
Article
ISSN:
2045-2322
Sponsors:
This 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).
Additional Links:
http://www.nature.com/articles/srep39134
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYeh, Li-Koen
dc.contributor.authorTian, Wei-Chengen
dc.contributor.authorLai, Kun-Yuen
dc.contributor.authorHe, Jr-Hauen
dc.date.accessioned2016-12-15T08:40:34Z-
dc.date.available2016-12-15T08:40:34Z-
dc.date.issued2016-12-14en
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.en
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/srep39134en
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.en
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).en
dc.publisherSpringer Natureen
dc.relation.urlhttp://www.nature.com/articles/srep39134en
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/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectMaterials for opticsen
dc.subjectNanoscale materialsen
dc.titleExceptionally omnidirectional broadband light harvesting scheme for multi-junction concentrator solar cells achieved via ZnO nanoneedlesen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionGraduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan, ROCen
dc.contributor.institutionDepartment of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan, ROCen
kaust.authorYeh, Li-Koen
kaust.authorHe, Jr-Hauen
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