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Graded band gap GaInNAs solar cells
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dc.contributor.author | Langer, F. | |
dc.contributor.author | Perl, S. | |
dc.contributor.author | Höfling, S. | |
dc.contributor.author | Kamp, M. | |
dc.date.accessioned | 2016-02-05T15:40:09Z | |
dc.date.available | 2016-02-05T15:40:09Z | |
dc.date.issued | 2015-06-08 | |
dc.identifier | 240813048 | |
dc.identifier | d69d6363-b171-43f7-813f-d1a869d108ce | |
dc.identifier | 84931281674 | |
dc.identifier | 000356170900059 | |
dc.identifier.citation | Langer , F , Perl , S , Höfling , S & Kamp , M 2015 , ' Graded band gap GaInNAs solar cells ' , Applied Physics Letters , vol. 106 , no. 23 , 233902 , pp. 1-5 . https://doi.org/10.1063/1.4922279 | en |
dc.identifier.issn | 0003-6951 | |
dc.identifier.other | Bibtex: urn:58668825f3832bdbe4fd69210096eaef | |
dc.identifier.uri | https://hdl.handle.net/10023/8156 | |
dc.description | This work was financially supported by the “Deutsches Zentrum für Luft- und Raumfahrt e.V.” (DLR) under the project “Solarzellenkonzepte für Raumfahrtgeneratoren der nächsten Generation” (SoNG, Contract No. 50RN1301). S.H. gratefully acknowledges the support by the Royal Society and the Wolfson Foundation. | en |
dc.description.abstract | Dilute nitride GaInN(Sb)As with a band gap (Eg) of 1.0 eV is a promising material for the integration in next generation multijunction solar cells. We have investigated the effect of a compositionally graded GaInNAs absorber layer on the spectral response of a GaInNAs sub cell. We produced band gap gradings (ΔEg) of up to 39 meV across a 1 μm thick GaInNAs layer. Thereby, the external quantum efficiency—compared to reference cells—was increased due to the improved extraction of photo-generated carriers from 34.0% to 36.7% for the wavelength range from 900 nm to 1150 nm. However, this device figure improvement is accompanied by a small decrease in the open circuit voltage of about 20 mV and the shift of the absorption edge to shorter wavelengths. | |
dc.format.extent | 5 | |
dc.format.extent | 1264771 | |
dc.language.iso | eng | |
dc.relation.ispartof | Applied Physics Letters | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | Graded band gap GaInNAs solar cells | en |
dc.type | Journal article | en |
dc.contributor.sponsor | The Royal Society | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1063/1.4922279 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | n/a | en |
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