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Article: Overcoming the bandgap limitation on solar cell materials

TitleOvercoming the bandgap limitation on solar cell materials
Authors
Issue Date2012
Citation
Applied Physics Letters, 2012, v. 100, n. 8 How to Cite?
AbstractThe thermodynamic efficiency of a single junction solar cell is bounded by the Shockley-Queisser detailed balance limit at ∼30 [W. Shockley and H. J. Queisser, J. Appl. Phys. 32, 510 (1961)]. This maximal efficiency is considered achievable using a semiconductor within a restricted bandgap range of 1.1-1.5 eV. This work upends this assumption by demonstrating that the optimal material bandgap can be shifted to lower energies by placing selective reflectors around the solar cell. This technique opens new possibilities for lower bandgap materials to achieve the thermodynamic limit and to be effective in high efficiency solar cells. © 2012 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/257107
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105

 

DC FieldValueLanguage
dc.contributor.authorNiv, A.-
dc.contributor.authorAbrams, Z. R.-
dc.contributor.authorGharghi, M.-
dc.contributor.authorGladden, C.-
dc.contributor.authorZhang, X.-
dc.date.accessioned2018-07-24T08:58:51Z-
dc.date.available2018-07-24T08:58:51Z-
dc.date.issued2012-
dc.identifier.citationApplied Physics Letters, 2012, v. 100, n. 8-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10722/257107-
dc.description.abstractThe thermodynamic efficiency of a single junction solar cell is bounded by the Shockley-Queisser detailed balance limit at ∼30 [W. Shockley and H. J. Queisser, J. Appl. Phys. 32, 510 (1961)]. This maximal efficiency is considered achievable using a semiconductor within a restricted bandgap range of 1.1-1.5 eV. This work upends this assumption by demonstrating that the optimal material bandgap can be shifted to lower energies by placing selective reflectors around the solar cell. This technique opens new possibilities for lower bandgap materials to achieve the thermodynamic limit and to be effective in high efficiency solar cells. © 2012 American Institute of Physics.-
dc.languageeng-
dc.relation.ispartofApplied Physics Letters-
dc.titleOvercoming the bandgap limitation on solar cell materials-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.3682101-
dc.identifier.scopuseid_2-s2.0-84863231375-
dc.identifier.volume100-
dc.identifier.issue8-
dc.identifier.spagenull-
dc.identifier.epagenull-

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