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Distinguishing electron diffusion and extraction in methylammonium lead iodide
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dc.contributor.author | Brown, Peter | |
dc.contributor.author | Ruseckas, Arvydas | |
dc.contributor.author | Krishnan Jagadamma, Lethy | |
dc.contributor.author | Blaszczyk, Oskar | |
dc.contributor.author | Harwell, Jonathon R. | |
dc.contributor.author | Mica, Natalie A. | |
dc.contributor.author | Zysman-Colman, Eli | |
dc.contributor.author | Samuel, Ifor D. W. | |
dc.date.accessioned | 2023-03-21T16:30:05Z | |
dc.date.available | 2023-03-21T16:30:05Z | |
dc.date.issued | 2023-03-30 | |
dc.identifier | 283750178 | |
dc.identifier | cae93847-64dd-477c-97c9-1bca69a2b032 | |
dc.identifier | 85151312775 | |
dc.identifier.citation | Brown , P , Ruseckas , A , Krishnan Jagadamma , L , Blaszczyk , O , Harwell , J R , Mica , N A , Zysman-Colman , E & Samuel , I D W 2023 , ' Distinguishing electron diffusion and extraction in methylammonium lead iodide ' , The Journal of Physical Chemistry Letters , vol. 14 , no. 12 , pp. 3007–3013 . https://doi.org/10.1021/acs.jpclett.3c00082 | en |
dc.identifier.issn | 1948-7185 | |
dc.identifier.other | ORCID: /0000-0002-4339-2484/work/131588452 | |
dc.identifier.other | ORCID: /0000-0001-9114-3522/work/131588730 | |
dc.identifier.other | ORCID: /0000-0001-7183-6022/work/131588847 | |
dc.identifier.uri | https://hdl.handle.net/10023/27237 | |
dc.description | Funding: The authors are grateful to EPSRC for equipment and research grants (EP/L017008/1 and EP/R035164/1) and for a Ph.D. studentship to P.E.B. (EP/R513337/1). Dr. L. K. Jagadamma acknowledges support from a Marie Skłodowska-Curie Individual Fellowship (745776) and funding from UKRI-FLF through grant MR/T022094/1. | en |
dc.description.abstract | Charge diffusion and extraction are crucial steps in the operation of solar cells. Here we show that time-resolved photoluminescence can be used to study electron diffusion in hybrid perovskite films and subsequent transfer to the adjacent electron extraction layer. As diffusion and transfer to the extraction layer are consecutive processes, they can be hard to distinguish, but by exciting from each side of the sample we can separate them and identify which process limits charge extraction. We find that the introduction of a fullerene monolayer between the methylammonium lead iodide (MAPbI3) and the electron-transporting SnO2 layers greatly increases the electron transfer velocity between them to the extent that electron diffusion limits the rate of electron extraction. Our results suggest that increasing the electron diffusion coefficient in MAPbI3 would further enhance the electron extraction rate, which could result in more efficient n–i–p type solar cells. | |
dc.format.extent | 7 | |
dc.format.extent | 2449833 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Journal of Physical Chemistry Letters | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject | MCC | en |
dc.subject.lcc | QC | en |
dc.title | Distinguishing electron diffusion and extraction in methylammonium lead iodide | en |
dc.type | Journal article | en |
dc.contributor.sponsor | European Commission | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Centre for Energy Ethics | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. Centre for Biophotonics | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1021/acs.jpclett.3c00082 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | 745776 | en |
dc.identifier.grantnumber | EP/R035164/1 | en |
dc.identifier.grantnumber | ep/l017008/1 | en |
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