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Excitons in bulk black phosphorus evidenced by photoluminescence at low temperature
hal.structure.identifier | LEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures] | |
hal.structure.identifier | Groupe d'Etude de la Matière Condensée [GEMAC] | |
hal.structure.identifier | DMAS, ONERA, Université Paris Saclay [Châtillon] | |
dc.contributor.author | CARRÉ, E | |
hal.structure.identifier | LEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures] | |
hal.structure.identifier | DMAS, ONERA, Université Paris Saclay [Châtillon] | |
dc.contributor.author | SPONZA, L | |
hal.structure.identifier | Groupe d'Etude de la Matière Condensée [GEMAC] | |
dc.contributor.author | LUSSON, A | |
hal.structure.identifier | Groupe d'Etude de la Matière Condensée [GEMAC] | |
dc.contributor.author | STENGER, I | |
hal.structure.identifier | Laboratoire Photonique, Numérique et Nanosciences [LP2N] | |
dc.contributor.author | GAUFRÈS, Étienne | |
hal.structure.identifier | LEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures] | |
hal.structure.identifier | DMAS, ONERA, Université Paris Saclay [Châtillon] | |
dc.contributor.author | LOISEAU, A | |
hal.structure.identifier | Groupe d'Etude de la Matière Condensée [GEMAC] | |
dc.contributor.author | BARJON, J | |
dc.date.accessioned | 2023-05-12T10:37:23Z | |
dc.date.available | 2023-05-12T10:37:23Z | |
dc.date.issued | 2021-04 | |
dc.identifier.issn | 2053-1583 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/181537 | |
dc.description.abstractEn | Atomic layers of Black Phosphorus (BP) present unique opto-electronic properties dominated by a direct tunable bandgap in a wide spectral range from visible to mid-infrared. In this work, we investigate the infrared photoluminescence of BP single crystals at very low temperature. Near-bandedge recombinations are observed at 2 K, including dominant excitonic transitions at 0.276 eV and a weaker one at 0.278 eV. The free-exciton binding energy is calculated with an anisotropic Wannier-Mott model and found equal to 9.1 meV. On the contrary, the PL intensity quenching of the 0.276 eV peak at high temperature is found with a much smaller activation energy, attributed to the localization of free excitons on a shallow impurity. This analysis leads us to attribute respectively the 0.276 eV and 0.278 eV PL lines to bound excitons and free excitons in BP. As a result, the value of bulk BP bandgap is refined to 0.287 eV at 2K. | |
dc.description.sponsorship | Electroluminescence en spin polarisés dans les couches minces de phosphore noir - ANR-17-CE24-0023 | |
dc.language.iso | en | |
dc.publisher | IOP Publishing | |
dc.title.en | Excitons in bulk black phosphorus evidenced by photoluminescence at low temperature | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1088/2053-1583/abca81 | |
dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci] | |
dc.description.sponsorshipEurope | Graphene Flagship Core Project 2 | |
dc.description.sponsorshipEurope | Graphene Flagship Core Project 3 | |
bordeaux.journal | 2D Materials | |
bordeaux.page | 021001 | |
bordeaux.volume | 8 | |
bordeaux.hal.laboratories | Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298 | * |
bordeaux.issue | 2 | |
bordeaux.institution | Université de Bordeaux | |
bordeaux.institution | CNRS | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-03049496 | |
hal.version | 1 | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-03049496v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=2D%20Materials&rft.date=2021-04&rft.volume=8&rft.issue=2&rft.spage=021001&rft.epage=021001&rft.eissn=2053-1583&rft.issn=2053-1583&rft.au=CARR%C3%89,%20E&SPONZA,%20L&LUSSON,%20A&STENGER,%20I&GAUFR%C3%88S,%20%C3%89tienne&rft.genre=article |
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