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Article: Quantifying Efficiency Loss of Perovskite Solar Cells by a Modified Detailed Balance Model

TitleQuantifying Efficiency Loss of Perovskite Solar Cells by a Modified Detailed Balance Model
Authors
Issue Date2018
PublisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1614-6840
Citation
Advanced Energy Materials, 2018, v. 8 n. 8, p. 1701586 How to Cite?
AbstractA modified detailed balance model is built to understand and quantify efficiency loss of perovskite solar cells. The modified model captures the light‐absorption‐dependent short‐circuit current, contact and transport‐layer‐modified carrier transport, as well as recombination and photon‐recycling‐influenced open‐circuit voltage. The theoretical and experimental results show that for experimentally optimized perovskite solar cells with the power conversion efficiency of 19%, optical loss of 25%, nonradiative recombination loss of 35%, and ohmic loss of 35% are the three dominant loss factors for approaching the 31% efficiency limit of perovskite solar cells. It is also found that the optical loss climbs up to 40% for a thin‐active‐layer design. Moreover, a misconfigured transport layer introduces above 15% of energy loss. Finally, the perovskite‐interface‐induced surface recombination, ohmic loss, and current leakage should be further reduced to upgrade device efficiency and eliminate hysteresis effect. This work contributes to fundamental understanding of device physics of perovskite solar cells. The developed model offers a systematic design and analysis tool to photovoltaic science and technology.
Persistent Identifierhttp://hdl.handle.net/10722/259319
ISSN
2019 Impact Factor: 25.245
2015 SCImago Journal Rankings: 6.411
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSha, W-
dc.contributor.authorZhang, H-
dc.contributor.authorWang, ZS-
dc.contributor.authorZhu, HL-
dc.contributor.authorRen, X-
dc.contributor.authorLin, F-
dc.contributor.authorJen, AKY-
dc.contributor.authorChoy, WCH-
dc.date.accessioned2018-09-03T04:05:09Z-
dc.date.available2018-09-03T04:05:09Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Energy Materials, 2018, v. 8 n. 8, p. 1701586-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10722/259319-
dc.description.abstractA modified detailed balance model is built to understand and quantify efficiency loss of perovskite solar cells. The modified model captures the light‐absorption‐dependent short‐circuit current, contact and transport‐layer‐modified carrier transport, as well as recombination and photon‐recycling‐influenced open‐circuit voltage. The theoretical and experimental results show that for experimentally optimized perovskite solar cells with the power conversion efficiency of 19%, optical loss of 25%, nonradiative recombination loss of 35%, and ohmic loss of 35% are the three dominant loss factors for approaching the 31% efficiency limit of perovskite solar cells. It is also found that the optical loss climbs up to 40% for a thin‐active‐layer design. Moreover, a misconfigured transport layer introduces above 15% of energy loss. Finally, the perovskite‐interface‐induced surface recombination, ohmic loss, and current leakage should be further reduced to upgrade device efficiency and eliminate hysteresis effect. This work contributes to fundamental understanding of device physics of perovskite solar cells. The developed model offers a systematic design and analysis tool to photovoltaic science and technology.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1614-6840-
dc.relation.ispartofAdvanced Energy Materials-
dc.rightsPreprint This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article]. Authors are not required to remove preprints posted prior to acceptance of the submitted version. Postprint This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving: http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms-
dc.titleQuantifying Efficiency Loss of Perovskite Solar Cells by a Modified Detailed Balance Model-
dc.typeArticle-
dc.identifier.emailSha, W: shawei@hku.hk-
dc.identifier.emailChoy, WCH: chchoy@eee.hku.hk-
dc.identifier.authoritySha, W=rp01605-
dc.identifier.authorityChoy, WCH=rp00218-
dc.identifier.doi10.1002/aenm.201701586-
dc.identifier.hkuros289883-
dc.identifier.hkuros290301-
dc.identifier.volume8-
dc.identifier.issue8-
dc.identifier.spage1701586-
dc.identifier.epage1701586-
dc.identifier.isiWOS:000427968900003-
dc.publisher.placeGermany-

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