Mechanically stacked solar cells for concentrator photovoltaics

dc.contributor.authorMathews, Ian P.
dc.contributor.authorO'Mahony, Donagh
dc.contributor.authorYu, Weiwei
dc.contributor.authorGordan, Declan
dc.contributor.authorCordero, Nicolas
dc.contributor.authorCorbett, Brian M.
dc.contributor.authorMorrison, Alan P.
dc.contributor.funderEnterprise Irelanden
dc.date.accessioned2014-11-07T11:19:28Z
dc.date.available2014-11-07T11:19:28Z
dc.date.issued2011
dc.description.abstractThe power output of dual-junction mechanically stacked solar cells comprising different sub-cell materials in a terrestrial concentrating photovoltaic module has been evaluated. The ideal bandgap combination of both cells in a stack was found using EtaOpt. A combination of 1.4 eV and 0.7 eV has been found to produce the highest photovoltaic conversion efficiency under the AM1.5 Direct Solar Spectrum with x500 concentration. As EtaOpt does not consider the absorption profile of solar cell materials; the practical power output per unit area of a dual junction mechanically stacked solar cell has been modelled considering the optical absorption co-efficients and thicknesses of the individual solar cells. The model considered a GaAs top cell and a Ge, GaSb, Ga0.47In0.53As or Si bottom cell. It was found that GaSb gives the highest power contribution as a bottom cell in a dual junction configuration followed by Ge and GaInAs. While the additional power provided by a Si bottom cell is less than these it remains a suitable candidate for a bottom cell owing to its lower costen
dc.description.statusPeer revieweden
dc.description.versionDraften
dc.format.mimetypeapplication/pdfen
dc.identifier.citationI. Mathews, D. O’Mahony, W. Yu, D. Gordon, N. Cordero, B. Corbett, A. P. Morrison. 2011. Mechanically Stacked Solar Cells for Concentrator Photovoltaics. In: International Conference on Renewable Energies and Power Quality. Gran Canaria, Spain, April 2011.en
dc.identifier.urihttps://hdl.handle.net/10468/1704
dc.language.isoenen
dc.publisherICREPQen
dc.relation.ispartofInternational Conference on Renewable Energies and Power Quality, Gran Canaria, Spain, April 2011
dc.relation.urihttp://www.icrepq.com/papers-icrepq11.html
dc.subjectMechanical stacken
dc.subjectGaAsen
dc.subjectPhotovoltaicen
dc.subjectConcentrationen
dc.subjectModellingen
dc.titleMechanically stacked solar cells for concentrator photovoltaicsen
dc.typeConference itemen
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