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All-Inorganic Perov...
All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes : Dual-Phase CsPbBr3-CsPb2Br5 Composites
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- Zhang, Xiaoli (author)
- South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China.;Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China.;Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
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- Xu, Bing (author)
- South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China.;Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China.
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- Zhang, Jinbao (author)
- Uppsala universitet,Fysikalisk kemi
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- Gao, Yuan (author)
- Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
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- Zheng, Yuanjin (author)
- Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
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- Wang, Kai (author)
- South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China.
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- Sun, Xiao Wei (author)
- South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China.;Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
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South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China;Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China.;Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore. South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China.;Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China. (creator_code:org_t)
- 2016-04-26
- 2016
- English.
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In: Advanced Functional Materials. - : Wiley. - 1616-301X .- 1616-3028. ; 26:25, s. 4595-4600
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A dual-phase all-inorganic composite CsPbBr3-CsPb2Br5 is developed and applied as the emitting layer in LEDs, which exhibited a maximum luminance of 3853 cd m(-2), with current density (CE) of approximate to 8.98 cd A(-1) and external quantum efficiency (EQE) of approximate to 2.21%, respectively. The parasite of secondary phase CsPb2Br5 nanoparticles on the cubic CsPbBr3 nanocrystals could enhance the current efficiency by reducing diffusion length of excitons on one side, and decrease the trap density in the band gap on the other side. In addition, the introduction of CsPb2Br5 nanoparticles could increase the ionic conductivity by reducing the barrier against the electronic and ionic transport, and improve emission lifetime by decreasing nonradiative energy transfer to the trap states via controlling the trap density. The dual-phase all-inorganic CsPbBr3-CsPb2Br5 composite nanocrystals present a new route of perovskite material for advanced light emission applications.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- all-inorganic
- efficiency
- light-emitting diode
- perovskites
Publication and Content Type
- ref (subject category)
- art (subject category)
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