Evidence of large polarons in photoemission band mapping of the perovskite semiconductor CsPbBr3
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{
"metadata": {
"is_last": true,
"version": 1,
"title": "Evidence of large polarons in photoemission band mapping of the perovskite semiconductor CsPbBr3",
"keywords": [
"EPFL",
"MARVEL",
"Lead halide Perovskites",
"Fr\u00f6hilch polarons",
"Angle-resolved photoelectron spectroscopy",
"Density functional theory",
"Hybrid functionals",
"GW method",
"Electron-phonon coupling",
"ERC",
"SNSF"
],
"description": "Lead-halide perovskite (LHP) semiconductors are emergent optoelectronic materials with outstanding transport properties which are not yet fully understood. We find signatures of large polaron formation in the electronic structure of the inorganic LHP CsPbBr3 by means of angle-resolved photoelectron spectroscopy. The experimental valence band dispersion shows a hole effective mass of 0.26\u00b10.02\u2009me, 50% heavier than the bare mass m0=0.17\u2009me predicted by ab-initio calculations. Calculations of the electron-phonon coupling indicate that phonon dressing of the carriers mainly occurs via distortions of the Pb-Br bond with a Fr\u00f6hlich coupling parameter \u03b1=1.82. A good agreement between theoretical and experimental data is obtained within the Feynman polaron model, validating a viable theoretical method to predict the carrier effective mass of LHPs ab initio.",
"license": "Creative Commons Attribution 4.0 International",
"references": [
{
"url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.206402",
"type": "Journal reference",
"citation": "M. Puppin, S. Polishchuk, N. Colonna, A. Crepaldi, D.\u2009N. Dirin, O. Nazarenko, R. De Gennaro, G. Gatti, S. Roth, T. Barillot, L. Poletto, R.\u2009P. Xian, L. Rettig, M. Wolf, R. Ernstorfer, M.\u2009V. Kovalenko, N. Marzari, M. Grioni, M. Chergui, Phys. Rev. Lett. 124, 206402 (2020)",
"comment": "Paper where the data is discussed",
"doi": "10.1103/PhysRevLett.124.206402"
},
{
"url": "https://arxiv.org/abs/1909.00248v1",
"type": "Preprint",
"citation": "M. Puppin, S. Polishchuk, N. Colonna, A. Crepaldi, D.\u2009N. Dirin, O. Nazarenko, R. De Gennaro, G. Gatti, S. Roth, T. Barillot, L. Poletto, R.\u2009P. Xian, L. Rettig, M. Wolf, R. Ernstorfer, M.\u2009V. Kovalenko, N. Marzari, M. Grioni, M. Chergui, arXiv:1909.00248v1",
"comment": "Preprint of the paper where the data is discussed",
"doi": ""
}
],
"doi": "10.24435/materialscloud:gb-90",
"conceptrecid": "589",
"publication_date": "Oct 14, 2020, 18:54:33",
"edited_by": 100,
"_oai": {
"id": "oai:materialscloud.org:590"
},
"contributors": [
{
"affiliations": [
"Laboratoire de Spectroscopie Ultrarapide and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, ISIC, Station 6, CH-1015 Lausanne, Switzerland"
],
"email": "michele.puppin@epfl.ch",
"familyname": "Puppin",
"givennames": "Michele"
},
{
"affiliations": [
"Laboratoire de Spectroscopie Ultrarapide and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, ISIC, Station 6, CH-1015 Lausanne, Switzerland"
],
"familyname": "Polishchuk",
"givennames": "Serhii"
},
{
"affiliations": [
"Theory and Simulations of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"email": "nicola.colonna@psi.ch",
"familyname": "Colonna",
"givennames": "Nicola"
},
{
"affiliations": [
"Institute of Physics and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"familyname": "Crepaldi",
"givennames": "Alberto"
},
{
"affiliations": [
"Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Z\u00fcrich, CH-8093 Z\u00fcrich, Switzerland",
"Laboratory for Thin Films and Photovoltaics, EMPA Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Dirin",
"givennames": "Dmitry"
},
{
"affiliations": [
"Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Z\u00fcrich, CH-8093 Z\u00fcrich, Switzerland",
"Laboratory for Thin Films and Photovoltaics, EMPA Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Nazarenko",
"givennames": "Olga"
},
{
"affiliations": [
"Theory and Simulations of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"email": "riccardo.degennaro@epfl.ch",
"familyname": "De Gennaro",
"givennames": "Riccardo"
},
{
"affiliations": [
"Institute of Physics and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"familyname": "Gatti",
"givennames": "Gianmarco"
},
{
"affiliations": [
"Institute of Physics and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"familyname": "Roth",
"givennames": "Silvan"
},
{
"affiliations": [
"Laboratoire de Spectroscopie Ultrarapide and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, ISIC, Station 6, CH-1015 Lausanne, Switzerland"
],
"familyname": "Barillot",
"givennames": "Thomas"
},
{
"affiliations": [
"National Research Council of Italy\u2014Institute of Photonics and Nanotechnologies (CNR-IFN), via Trasea 7, 35131 Padova, Italy"
],
"familyname": "Poletto",
"givennames": "Luca"
},
{
"affiliations": [
"Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany"
],
"familyname": "Xian",
"givennames": "Rui Patrick"
},
{
"affiliations": [
"Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany"
],
"familyname": "Rettig",
"givennames": "Laurenz"
},
{
"affiliations": [
"Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany"
],
"familyname": "Wolf",
"givennames": "Martin"
},
{
"affiliations": [
"Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany"
],
"familyname": "Ernstorfer",
"givennames": "Ralph"
},
{
"affiliations": [
"Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Z\u00fcrich, CH-8093 Z\u00fcrich, Switzerland",
"Laboratory for Thin Films and Photovoltaics, EMPA Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, CH-8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Kovalenko",
"givennames": "Maksym V."
},
{
"affiliations": [
"Theory and Simulations of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"email": "nicola.marzari@epfl.ch",
"familyname": "Marzari",
"givennames": "Nicola"
},
{
"affiliations": [
"Institute of Physics and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, CH-1015 Lausanne, Switzerland"
],
"email": "marco.grioni@epfl.ch",
"familyname": "Grioni",
"givennames": "Marco"
},
{
"affiliations": [
"Laboratoire de Spectroscopie Ultrarapide and Lausanne Centre for Ultrafast Science (LACUS), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne, ISIC, Station 6, CH-1015 Lausanne, Switzerland"
],
"email": "majed.chergui@epfl.ch",
"familyname": "Chergui",
"givennames": "Majed"
}
],
"owner": 197,
"license_addendum": null,
"mcid": "2020.124",
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"id": "590",
"status": "published"
},
"revision": 18,
"updated": "2020-10-14T16:54:33.990147+00:00",
"created": "2020-10-09T10:58:02.750418+00:00",
"id": "590"
}