Spin-valley-locked Electroluminescence for High-Performance Circularly-Polarized Organic Light-Emitting Diodes
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arXiv
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| Autori principali: | , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914866511478784 |
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| author | Deng, Yibo Long, Teng Wang, Pingyang Huang, Han Deng, Zijian Gu, Chunling An, Cunbin Liao, Bo Malpuech, Guillaume Solnyshkov, Dmitry Fu, Hongbing Liao, Qing |
| author_facet | Deng, Yibo Long, Teng Wang, Pingyang Huang, Han Deng, Zijian Gu, Chunling An, Cunbin Liao, Bo Malpuech, Guillaume Solnyshkov, Dmitry Fu, Hongbing Liao, Qing |
| contents | Circularly polarized (CP) organic light-emitting diodes (OLEDs) have attracted attention in potential applications including novel display and photonic technologies. However, conventional approaches cannot meet the requirements of device performance, such as high dissymmetry factor, high directionality, narrowband emission, simplified device structure and low costs. Here, we demonstrate spin-valley-locked CP-OLEDs without chiral emitters, but based on photonic spin-orbit coupling, where photons with opposite CP characteristics are emitted from different optical valleys. These spin-valley locked OLEDs exhibit a narrowband emission of 16 nm, a high EQE of 3.65, a maximum luminance of near 98000 cd/m2 and a gEL of up to 1.80, which are among the best performances of active single-crystal CP-OLEDs, achieved with a simple device structure. This strategy opens an avenue for practical applications towards three-dimensional displays and on-chip CP-OLEDs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_08499 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin-valley-locked Electroluminescence for High-Performance Circularly-Polarized Organic Light-Emitting Diodes Deng, Yibo Long, Teng Wang, Pingyang Huang, Han Deng, Zijian Gu, Chunling An, Cunbin Liao, Bo Malpuech, Guillaume Solnyshkov, Dmitry Fu, Hongbing Liao, Qing Mesoscale and Nanoscale Physics Optics Circularly polarized (CP) organic light-emitting diodes (OLEDs) have attracted attention in potential applications including novel display and photonic technologies. However, conventional approaches cannot meet the requirements of device performance, such as high dissymmetry factor, high directionality, narrowband emission, simplified device structure and low costs. Here, we demonstrate spin-valley-locked CP-OLEDs without chiral emitters, but based on photonic spin-orbit coupling, where photons with opposite CP characteristics are emitted from different optical valleys. These spin-valley locked OLEDs exhibit a narrowband emission of 16 nm, a high EQE of 3.65, a maximum luminance of near 98000 cd/m2 and a gEL of up to 1.80, which are among the best performances of active single-crystal CP-OLEDs, achieved with a simple device structure. This strategy opens an avenue for practical applications towards three-dimensional displays and on-chip CP-OLEDs. |
| title | Spin-valley-locked Electroluminescence for High-Performance Circularly-Polarized Organic Light-Emitting Diodes |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2407.08499 |