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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.22741 |
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| _version_ | 1866915417736347648 |
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| author | Nair, Pradeep R Marathi, Advaith Kiran |
| author_facet | Nair, Pradeep R Marathi, Advaith Kiran |
| contents | Here, we report a comprehensive modeling framework to unravel the efficiency roll-off in Perovskite light emitting diodes (PeLEDs). Our model self-consistently accounts for a positive feedback mechanism which involves diverse phenomena like temperature-dependent carrier recombination, space charge effects, Joule heating, and thermal transport. Model predictions compare well with experimental results such as dark current-voltage characteristics and efficiency as well as radiance roll-off under high injection conditions. This work identifies key performance limiting phenomena in current state-of-the-art PeLEDs and could be of broad relevance towards device optimization, thermal design, packaging, and operational lifetime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_22741 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the efficiency roll-off in Perovskite Light Emitting Diodes Nair, Pradeep R Marathi, Advaith Kiran Applied Physics Materials Science Here, we report a comprehensive modeling framework to unravel the efficiency roll-off in Perovskite light emitting diodes (PeLEDs). Our model self-consistently accounts for a positive feedback mechanism which involves diverse phenomena like temperature-dependent carrier recombination, space charge effects, Joule heating, and thermal transport. Model predictions compare well with experimental results such as dark current-voltage characteristics and efficiency as well as radiance roll-off under high injection conditions. This work identifies key performance limiting phenomena in current state-of-the-art PeLEDs and could be of broad relevance towards device optimization, thermal design, packaging, and operational lifetime. |
| title | On the efficiency roll-off in Perovskite Light Emitting Diodes |
| topic | Applied Physics Materials Science |
| url | https://arxiv.org/abs/2507.22741 |