Highly luminescent nanoscale quasi-2D layered lead bromide perovskites with tunable emissions

Zhao, Yuan; Shu, Yu; Xin, Yan; Ma, Biwu

doi:10.1039/c5cc09762b

Cited by 168 publications

(172 citation statements)

References 34 publications

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“…The stable colloidal solutions of CH 3 NH 3 PbX 3 nanoparticles with size below 10 nm were first reported in 2014 [10], which stimulated tremendous research interest in perovskite quantum dots. By controlling the number of metal halide layers, quasi-2D structures can be obtained with tunable band gaps and photoluminescence [11]. The corrugated-2D structures to produce white-light broadband emissions, first reported in 2014, were found to have large structure distortion and strong exciton-lattice coupling with efficient exciton self-trapping [12].…”

Section: Introductionmentioning

confidence: 99%

Organic–inorganic metal halide hybrids beyond perovskites

Zhou

Lin

Lee

et al. 2018

Materials Research Letters

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102

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Organic-inorganic metal halide hybrids have emerged as new generation functional materials with exceptional structure and property tunability for a variety of applications. Besides the most investigated ABX 3 metal halide perovskites, a variety of hybrids consisting of a wide range of organic cations and metal halide anions have been developed and studied recently. Here, we provide an overview of these new materials possessing various crystallographic structures, including double perovskites, low dimensional hybrids, and other perovskite-related materials. We discuss their syntheses, functional properties, and optoelectronic applications. Challenges and opportunities are then laid out for these hybrid materials beyond perovskites. IMPACT STATEMENTBy choosing appropriate organic cations and metal halide anions, single crystalline ionically bonded hybrid materials can be assembled to possess various structures beyond the well-known ABX 3 perovskite. These hybrid materials exhibit exciting new properties with potential applications in a variety of areas. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Organic–inorganic metal halide hybrids beyond perovskites

Zhou

Lin

Lee

et al. 2018

Materials Research Letters

Self Cite

102

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“…It was found that a quasi-2D structured perovskite film, spin-coated from solution, consists of crystalline perovskite areas with different phases and exhibits higher PLQE than either 3D or 2D perovskite films. 28,21,29 This composite film benefits from better exciton confinement in a 2D-dimensional perovskite, while keeping the better conductivity of a 3D-dimensional perovskite. Another report shows that these low-dimensional perovskites also show potential to extend emission spectrum deeper into the short wavelength end with modest PLQE and high colour purity.…”

Section: Films Prepared From Precursor Solutionmentioning

confidence: 99%

“…10,20,[23][24][25][26][27] Lower-dimensional perovskites have drawn researchers' attention recently. 21,28,29 Apart from using organic anions, several more recent reports employed Csbased all-inorganic halide perovskites to make use of their better thermal stability. 30,31 Apart from lead-based perovskites, tin-based perovskites have also been used to make light-emitting diodes.…”

Section: Introductionmentioning

confidence: 99%

Research Update: Challenges for high-efficiency hybrid lead-halide perovskite LEDs and the path towards electrically pumped lasing

Price

Deschler

2016

APL Materials

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Hybrid lead-halide perovskites have emerged as promising solution-processed semiconductor materials for thin-film optoelectronics. In this review, we discuss current challenges in perovskite LED performance, using thin-film and nano-crystalline perovskite as emitter layers, and look at device performance and stability. Fabrication of electrically pumped, optical-feedback devices with hybrid lead halide perovskites as gain medium is a future challenge, initiated by the demonstration of optically pumped lasing structures with low gain thresholds. We explain the material parameters affecting optical gain in perovskites and discuss the challenges towards electrically pumped perovskite lasers.

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“…The same group also reported nanoscale quasi-2D layered perovskites with tunable emissions from 403 to 530 nm by changing the organic cations used. 60 Direct synthesis of all-inorganic perovskite NCs Perovskite NCs with all-inorganic cations have been receiving significant attention, partly due to their higher stability compared with the hybrid organic-inorganic perovskites. Kovalenko and colleagues 24 were first to report on caesium lead halide perovskite NCs (CsPbX 3 , X = Cl, Br and I), with a high degree of compositional bandgap engineering.…”

Section: Synthesis Of Perovskite Ncsmentioning

confidence: 99%

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

et al. 2016

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Lead halide perovskite nanocrystals (NCs) are receiving a lot of attention nowadays, due to their exceptionally high photoluminescence quantum yields reaching almost 100% and tunability of their optical band gap over the entire visible spectral range by modifying composition or dimensionality/size. We review recent developments in the direct synthesis and ion exchange-based reactions, leading to hybrid organic-inorganic (CH 3 NH 3 PbX 3 ) and all-inorganic (CsPbX 3 ) lead halide (X = Cl, Br, I) perovskite NCs, and consider their optical properties related to quantum confinement effects, single emission spectroscopy and lasing. We summarize recent developments on perovskite NCs employed as an active material in several applications such as light-emitting devices, solar cells and photodetectors, and provide a critical outlook into the existing and future challenges.

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Highly luminescent nanoscale quasi-2D layered lead bromide perovskites with tunable emissions

Cited by 168 publications

References 34 publications

Organic–inorganic metal halide hybrids beyond perovskites

Organic–inorganic metal halide hybrids beyond perovskites

Research Update: Challenges for high-efficiency hybrid lead-halide perovskite LEDs and the path towards electrically pumped lasing

Colloidal lead halide perovskite nanocrystals: synthesis, optical properties and applications

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