Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction
dc.contributor.author | Ferrer Orri, Jordi | |
dc.contributor.author | Doherty, Tiarnan | |
dc.contributor.author | Johnstone, Duncan | |
dc.contributor.author | Collins, Sean | |
dc.contributor.author | Simons, Hugh | |
dc.contributor.author | Midgley, Paul | |
dc.contributor.author | Ducati, Caterina | |
dc.contributor.author | Stranks, Samuel | |
dc.date.accessioned | 2022-04-01T08:00:29Z | |
dc.date.available | 2022-04-01T08:00:29Z | |
dc.date.issued | 2022-05 | |
dc.date.submitted | 2022-01-13 | |
dc.identifier.issn | 0935-9648 | |
dc.identifier.other | adma202200383 | |
dc.identifier.uri | https://www.repository.cam.ac.uk/handle/1810/335657 | |
dc.description | Funder: Engineering and Physical Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000266 | |
dc.description | Funder: National University of Ireland Travelling Studentship | |
dc.description | Funder: European Research Council; Id: http://dx.doi.org/10.13039/501100000781 | |
dc.description.abstract | The interaction of high-energy electrons and X-ray photons with beam-sensitive semiconductors such as halide perovskites is essential for the characterisation and understanding of these optoelectronic materials. Using nano-probe diffraction techniques, which can investigate physical properties on the nanoscale, we perform studies of the interaction of electron and X-ray radiation with state-of-the-art (FA0.79MA0.16Cs0.05)Pb(I0.83Br0.17)3 hybrid halide perovskite films (FA, formamidinium; MA, methylammonium). We track the changes in the local crystal structure as a function of fluence using scanning electron diffraction and synchrotron nano X-ray diffraction techniques. We identify perovskite grains from which additional reflections, corresponding to PbBr2, appear as a crystalline degradation phase after fluences of ~200 e-Å-2. These changes are concomitant with the formation of small PbI2 crystallites at the adjacent high-angle grain boundaries, with the formation of pinholes, and with a phase transition from tetragonal to cubic. A similar degradation pathway is caused by photon irradiation in nano-X-ray diffraction, suggesting common underlying mechanisms. Our approach explores the radiation limits of these materials and provides a description of the degradation pathways on the nanoscale. Addressing high-angle grain boundaries will be critical for the further improvement of halide polycrystalline film stability, especially for applications vulnerable to high-energy radiation such as space photovoltaics. | |
dc.description.sponsorship | EP/L015978/1 HYPERION, grant agreement no. 756962 UF150033 EP/R023980/1 CAM-IES, EP/P007767/1 ePSIC (MG25250) Diamond Light Source (SP-20420) | |
dc.language | en | |
dc.publisher | Wiley | |
dc.subject | Research Article | |
dc.subject | Research Articles | |
dc.subject | high‐energy beam damage | |
dc.subject | lead halide perovskites | |
dc.subject | nano‐X‐ray diffraction | |
dc.subject | nanoprobe diffraction | |
dc.subject | scanning electron diffraction | |
dc.title | Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction | |
dc.type | Article | |
dc.date.updated | 2022-04-01T08:00:29Z | |
prism.publicationName | Advanced Materials | |
dc.identifier.doi | 10.17863/CAM.83087 | |
dcterms.dateAccepted | 2022-03-08 | |
rioxxterms.versionofrecord | 10.1002/adma.202200383 | |
rioxxterms.version | AO | |
rioxxterms.version | VoR | |
rioxxterms.licenseref.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.contributor.orcid | Ferrer Orri, Jordi [0000-0002-0432-5932] | |
dc.contributor.orcid | Midgley, Paul [0000-0002-6817-458X] | |
dc.contributor.orcid | Ducati, Caterina [0000-0003-3366-6442] | |
dc.contributor.orcid | Stranks, Samuel [0000-0002-8303-7292] | |
dc.identifier.eissn | 1521-4095 | |
pubs.funder-project-id | EPSRC (2123952) | |
pubs.funder-project-id | Royal Society (UF150033) | |
pubs.funder-project-id | European Research Council (756962) | |
pubs.funder-project-id | Engineering and Physical Sciences Research Council (EP/R023980/1) | |
pubs.funder-project-id | Leverhulme Trust (RPG-2021-191) | |
pubs.funder-project-id | EPSRC (Unknown) | |
pubs.funder-project-id | Engineering and Physical Sciences Research Council (EP/L015978/1) | |
pubs.funder-project-id | Engineering and Physical Sciences Research Council (EP/P007767/1) | |
cam.issuedOnline | 2022-03-14 |
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