CsPbX<sub>3</sub> nanocrystals embedded in hollow AlO(OH) nanosheet assemblies towards highly bright flexible multicolor emitting films

He, Jinchan; Zhang, Xiao; Xie, Cong; Chen, Hsueh‐Shih; Yang, Ping

doi:10.1039/d3tc00716b

Cited by 11 publications

(14 citation statements)

References 40 publications

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“…Recently, we have successfully prepared a composite containing mesoporous AlO(OH) nanosheet assemblies and encapsulated CsPbX 3 NCs (CsPbX 3 @AlO(OH)), with the in situ growth of CsPbX 3 NCs attained on the AlO(OH) matrix at room temperature . The presence of the AlO(OH) matrix was able to protect CsPbX 3 NCs from the outer environment, to prevent the aggregation of the nanocrystals, and to improve the stability of the CsPbX 3 materials . The fabricated CsPbX 3 @AlO(OH) composites showed high PLQYs of about 96.4%.…”

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

“…(j–n) SEM image and EDX elemental mapping of the CsPbBr 3 @AlO(OH) composites, with the 0.28 nm spacing corresponding to the (110) plane of orthographic AlO(OH) and the 0.25 nm spacing corresponding to the (120) plane of the CsPbBr 3 NCs. Reproduced with permission from ref . Copyright 2023 Royal Society of Chemistry.…”

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

“…Spectra data were collected for the composites, with the digital pictures of the CsPbX 3 (in powder form with different colors) under UV irradiation and the room light condition shown in Figure a; the PL spectra, absorption spectra, and fluorescence lifetime of the composites are shown in Figure b to d. It was clear that a quite high PLQY of about 96.4% was observed for the CsPbBr 3 @AlO(OH) composites and that the average fluorescence lifetimes of the CsPbBr 3 @AlO(OH), CsPbCl 2 Br@AlO(OH), and CsPbBrI 2 @AlO(OH) composites were estimated to be 21.36, 13.74, and 31.65 ns, respectively …”

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

“…(c i –c iv ) Digital pictures of the red-emitting CsPbI 3 @AlO(OH) film with the insets showing the digital pictures of the film in room light. Reproduced with permission from ref . Copyright 2023 Royal Society of Chemistry.…”

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

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CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

Zhang,

Yang

2023

Langmuir

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Cesium lead halide (CsPbX 3 , X = Cl, Br, and I) perovskite nanocrystals (NCs) possess great potential in light-emitting diode applications because of their high brightness, low cost, tunable luminescence, and facile synthesis nature. However, these NCs are often disadvantaged by their instability in nonsolvent environment that hinders the practical applications of the material. In order to solve these issues, cesium lead halide NCs prepared using a solvent environment can be placed on substrates to retain the high stability and expand the applicability of the material. This Review focuses on the transfer of the allinorganic cesium lead halide NCs (synthesized in solutions) onto matrix materials and their direct synthesis on these bases, including the inert shell growth (inorganic and organic shell), embedment in matrixes (e.g., metal organic frameworks, porous SiO 2 , glass, ZrO 2 , Al 2 O 3 , and AlOOH), and direct synthesis in substrates. In particular, the strategies for stability and PL property improvement of the materials are also summarized. The purpose of this Review is to provide inspiration for the encapsulation of cesium lead halide NCs with high brightness and stability in matrixes to expand the applicability of these materials in wide color gamut backlighting (e.g., white-light-emitting devices).

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Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

Section: Cspbx3 Nc Incorporation Into Alo(oh)mentioning

confidence: 99%

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CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

Zhang,

Yang

2023

Langmuir

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‘Out of the glovebox’ studies of a multifunctional [Gd³⁺‐Ho³⁺‐Dy³⁺]:CsPbI_2.7Br_0.3 perovskite semiconductor system for energy applications

Jaffri,

Ahmad,

Abrahams

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThis work deciphers the first report on the treble lanthanide‐doped perovskite heterosystem [Gd3+‐Ho3+‐Dy3+]:CsPbI2.7Br0.3 (GHD:C‐PVSK) and subsequently explores its prospects for solar cells, energy generation, and charge storage.RESULTSGHD:C‐PVSK remained optically active for a period of 28 days with a band gap energy of 1.62–1.76 eV. The developed perovskite material possesses cubic phase with typical ABX3 geometry and the subsequently deposited thin films have compact morphology. As a light absorber layer, a GHD:C‐PVSK‐based solution‐processed perovskite solar cell executed an efficiency of 15.11% and an improved fill factor of 71.25%. In electrocatalytic assays, GHD:C‐PVSK emerged as a bifunctional catalyst for oxygen and hydrogen generation with greater tendency towards pure hydrogen production, exuding overpotential (ηHER) – that is, 143 mV and 123.4 mV dec−1 of the Tafel slope value. With a remarkable service life of 100 min inside the electrolyte, the GHD:C‐PVSK electrode was characterized by its excellent charge storage. It has a unit capacity of 383 mA h g−1 and is marked by reduced equivalent series resistance (Rs) of 0.66 Ω.CONCLUSIONThrough photoelectrical and electrical analysis, GHD:C‐PVSK has emerged as a sustainable and energy‐efficient material that can be stabilized by suitable thermal modulation and lanthanide doping. © 2024 Society of Chemical Industry (SCI).

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Exceptional Stability against Water, UV Light, and Heat for CsPbBr₃@Pb‐MOF Composites

Wang,

Yan,

et al. 2024

Small Methods

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All‐inorganic lead halide perovskite nanocrystals (NCs) have been widely applied in optoelectronic devices owing to their excellent photoluminescence (PL) properties. However, poor stability upon exposure to water, UV light or heat strongly limits their practical application. Herein, CsPbBr3@Pb‐MOF composites with exceptional stability against water, UV light, and heat are synthesized by ultrasonic processing the precursors of lead‐based MOF (Pb‐MOF), oleylammonium bromide (OAmBr) and cesium oleate (Cs‐OA) solutions at room temperature. Pb‐MOF can not only provide the lead source for the in situ growth of CsPbBr3 NCs, but also the protective layer of perovskites NCs. The formed CsPbBr3@Pb‐MOF composites show a considerable PL quantum yield (PLQY) of 67.8%, and can maintain 90% of the initial PL intensity when immersed in water for 2 months. In addition, the outstanding PL stability against UV light and heat is demonstrated with CsPbBr3 NCs synthesized by the conventional method as a comparison. Finally, a green (light‐emitting diode) LED is fabricated using green‐emitting CsPbBr3@Pb‐MOF composites and exhibits excellent stability without packaging when immersed in water for 30 days. This study provides a practical approach to improve the stability in aqueous phase, which may pave the way for future applications for various optoelectronic devices.

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CsPbX₃ nanocrystals embedded in hollow AlO(OH) nanosheet assemblies towards highly bright flexible multicolor emitting films

Abstract: Because of inherent ionic properties, inorganic cesium halide lead perovskite nanocrystals (NCs) are normally unstable in light and heat enviromental as well as polar solvents, which seriously limits their practical...

Cited by 11 publications

References 40 publications

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

‘Out of the glovebox’ studies of a multifunctional [Gd³⁺‐Ho³⁺‐Dy³⁺]:CsPbI_2.7Br_0.3 perovskite semiconductor system for energy applications

Exceptional Stability against Water, UV Light, and Heat for CsPbBr₃@Pb‐MOF Composites

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CsPbX3 nanocrystals embedded in hollow AlO(OH) nanosheet assemblies towards highly bright flexible multicolor emitting films

Abstract: Because of inherent ionic properties, inorganic cesium halide lead perovskite nanocrystals (NCs) are normally unstable in light and heat enviromental as well as polar solvents, which seriously limits their practical...

Cited by 11 publications

References 40 publications

CsPbX3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

CsPbX3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

‘Out of the glovebox’ studies of a multifunctional [Gd3+‐Ho3+‐Dy3+]:CsPbI2.7Br0.3 perovskite semiconductor system for energy applications

Exceptional Stability against Water, UV Light, and Heat for CsPbBr3@Pb‐MOF Composites

Contact Info

Product

Resources

About

CsPbX₃ nanocrystals embedded in hollow AlO(OH) nanosheet assemblies towards highly bright flexible multicolor emitting films

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

‘Out of the glovebox’ studies of a multifunctional [Gd³⁺‐Ho³⁺‐Dy³⁺]:CsPbI_2.7Br_0.3 perovskite semiconductor system for energy applications

Exceptional Stability against Water, UV Light, and Heat for CsPbBr₃@Pb‐MOF Composites