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Capping ligand engi...
Capping ligand engineering enables stable CsPbBr3 perovskite quantum dots toward white-light-emitting diodes
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- Zhu, Xiaolin (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Pan, Zhangcheng (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Xu, Tianyue (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Shao, Xiuwen (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Gao, Zhaoju (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Xie, Qingyu (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Ying, Yupeng (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Pei, Wei (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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- Lin, Hao (författare)
- Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao
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- Wang, Jia (författare)
- Umeå universitet,Institutionen för fysik
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- Tang, Xiaosheng (författare)
- College of Optoelectronic Engineering, Chongqing University of Post and Telecommunications, Chongqing, China
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- Chen, Weiwei (författare)
- College of Optoelectronic Engineering, Chongqing University of Post and Telecommunications, Chongqing, China
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- Liu, Yongfeng (författare)
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, China
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- Engelska.
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Ingår i: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 62:23, s. 9190-9198
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- All-inorganic perovskite quantum dots (PeQDs) have sparked extensive research focus on white-light-emitting diodes (WLEDs), but stability and photoluminescence efficiency issues are still remain obstacles impeding their practical application. Here, we reported a facile one-step method to synthesize CsPbBr3 PeQDs at room temperature using branched didodecyldimethylammonium fluoride (DDAF) and short-chain-length octanoic acid as capping ligands. The obtained CsPbBr3 PeQDs have a near-unity photoluminescence quantum yield of 97% due to the effective passivation of DDAF. More importantly, they exhibit much improved stability against air, heat, and polar solvents, maintaining >70% of initial PL intensity. Making use of these excellent optoelectronic properties, WLEDs based on CsPbBr3 PeQDs, CsPbBr1.2I1.8 PeQDs, and blue LEDs were fabricated, which show a color gamut of 122.7% of the National Television System Committee standard, a luminous efficacy of 17.1 lm/W, with a color temperature of 5890 K, and CIE coordinates of (0.32, 0.35). These results indicate that the CsPbBr3 PeQDs have great practical potential in wide-color-gamut displays.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
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Zhu, Xiaolin
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Pan, Zhangcheng
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Xu, Tianyue
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Shao, Xiuwen
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Gao, Zhaoju
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Xie, Qingyu
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visa fler...
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Ying, Yupeng
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Pei, Wei
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Lin, Hao
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Wang, Jia
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Tang, Xiaosheng
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Chen, Weiwei
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Liu, Yongfeng
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visa färre...
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