Dual-ligand quasi-2D perovskites with chiral-induced spin selectivity for room temperature spin-LEDs
Spin-LEDs have been a central topic in semiconductor spintronics research and represent a promising avenue for advanced optoelectronic devices and applications. The future advancements of spin-LEDs will undoubtedly hinge on the generation and manipulation of spin-polarized population at room temperature. In this research, we elucidate the development of room-temperature spin-LEDs using quasi-2D perovskites, based on the chiral-induced spin selectivity (CISS) effect. During the carrier transfer from the chiral n2 phase to the randomly oriented high-n phase caused by the bandgap gradient distribution, CISS works to generate non-equilibrium spin population, leading to room-temperature spin-polarized fluorescence. A spin-polarization of ∼93% is observed for the films. Finally, we realize spin-LEDs at room temperature, exhibiting a |gCP-EL| value of 0.05 and an EQE of 3.8%. This work highlights the potential of integrating dual ligands to optimize the phase distribution and crystalline orientation in quasi-2D films to achieve efficient CISS for spin-LED applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Materials horizons - (2024) vom: 03. Apr. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Gao, Haotian [VerfasserIn] |
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| Anmerkungen: |
Date Revised 03.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1039/d3mh02029k |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370568494 |
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| 245 | 1 | 0 | |a Dual-ligand quasi-2D perovskites with chiral-induced spin selectivity for room temperature spin-LEDs |
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| 520 | |a Spin-LEDs have been a central topic in semiconductor spintronics research and represent a promising avenue for advanced optoelectronic devices and applications. The future advancements of spin-LEDs will undoubtedly hinge on the generation and manipulation of spin-polarized population at room temperature. In this research, we elucidate the development of room-temperature spin-LEDs using quasi-2D perovskites, based on the chiral-induced spin selectivity (CISS) effect. During the carrier transfer from the chiral n2 phase to the randomly oriented high-n phase caused by the bandgap gradient distribution, CISS works to generate non-equilibrium spin population, leading to room-temperature spin-polarized fluorescence. A spin-polarization of ∼93% is observed for the films. Finally, we realize spin-LEDs at room temperature, exhibiting a |gCP-EL| value of 0.05 and an EQE of 3.8%. This work highlights the potential of integrating dual ligands to optimize the phase distribution and crystalline orientation in quasi-2D films to achieve efficient CISS for spin-LED applications | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Chen, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ruxi |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Rui |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Yunfei |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Yin |e verfasserin |4 aut | |
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