Fundamental Limitations of Hot-Carrier Solar Cells

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dc.contributor.authorKirk, Alexander P.en_US
dc.contributor.authorFischetti, Massimo V.en_US
dc.date.accessioned2013-10-11T16:18:14Z
dc.date.available2013-10-11T16:18:14Z
dc.date.created2012-10-22
dc.description.abstractSunlight-generated hot-carrier transport in strongly absorbing direct band-gap GaAs-among the most optimal of semiconductors for high-efficiency solar cells-is simulated with an accurate full-band structure self-consistent Monte Carlo method, including short- and long-range Coulomb interaction, impact ionization, and optical and acoustic phonon scattering. We consider an ultrapure 100-nm-thick intrinsic GaAs absorber layer designed with quasiballistic carrier transport that achieves complete photon absorption down to the band edge by application of careful light trapping and that has a generous hot-carrier retention time of 10 ps prior to the onset of carrier relaxation. We find that hot-carrier solar cells can be severely limited in performance due to the substantially reduced current density caused by insufficient extraction of the widely distributed hot electrons (holes) through the requisite energy selective contacts. © 2012 American Physical Society.en_US
dc.identifier.bibliographicCitationKirk, A. P., and M. V. Fischetti. 2012. "Fundamental limitations of hot-carrier solar cells." Physical Review B - Condensed Matter and Materials Physics 86(16): 165206-1 to 165206-12.
dc.identifier.citationKirk, A. P., and M. V. Fischetti. 2012. "Fundamental limitations of hot-carrier solar cells." Physical Review B - Condensed Matter and Materials Physics 86(16): 165206-1 to 165206-12.en_US
dc.identifier.issn1098-0121en_US
dc.identifier.issue16en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/2903
dc.identifier.volume86en_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevB.86.165206en_US
dc.rights© 2012 American Physical Societyen_US
dc.source.journalPhysical Review B - Condensed Matter and Materials Physicsen_US
dc.subjectElectron impact ionizationen_US
dc.subjectScattering (Physics)en_US
dc.subjectSemiconductorsen_US
dc.titleFundamental Limitations of Hot-Carrier Solar Cellsen_US
dc.typetexten_US
dc.type.genrearticleen_US

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