Ligand Field Exciton Annihilation in Bulk CrCl3
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913361509220352 |
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| author | Sridhar, Samanvitha Khansari, Ario O'Donnell, Shaun Barth, Alexandra T. Danilov, Evgeny O. Castellano, Felix N. Maggard, Paul A. Dougherty, Daniel B. |
| author_facet | Sridhar, Samanvitha Khansari, Ario O'Donnell, Shaun Barth, Alexandra T. Danilov, Evgeny O. Castellano, Felix N. Maggard, Paul A. Dougherty, Daniel B. |
| contents | The layered van der Waals material CrCl3 exhibits very strongly bound ligand field excitons that control optoelectronic applications and are connected with magnetic ordering by virtue of their d-orbital origin. Time-resolved photoluminescence of these exciton populations at room temperature shows that their relaxation is dominated by exciton-exciton annihilation and that the spontaneous decay lifetime is very long. These observations allow the rough quantification of the exciton annihilation rate constant and contextualization in light of a recent theory of universal scaling behavior of the annihilation process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_15528 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ligand Field Exciton Annihilation in Bulk CrCl3 Sridhar, Samanvitha Khansari, Ario O'Donnell, Shaun Barth, Alexandra T. Danilov, Evgeny O. Castellano, Felix N. Maggard, Paul A. Dougherty, Daniel B. Materials Science Strongly Correlated Electrons The layered van der Waals material CrCl3 exhibits very strongly bound ligand field excitons that control optoelectronic applications and are connected with magnetic ordering by virtue of their d-orbital origin. Time-resolved photoluminescence of these exciton populations at room temperature shows that their relaxation is dominated by exciton-exciton annihilation and that the spontaneous decay lifetime is very long. These observations allow the rough quantification of the exciton annihilation rate constant and contextualization in light of a recent theory of universal scaling behavior of the annihilation process. |
| title | Ligand Field Exciton Annihilation in Bulk CrCl3 |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2405.15528 |