Mechanochemical synthesis of a processable halide perovskite quantum dot–MOF composite by post-synthetic metalation

Bhattacharyya, S. P.; Rambabu, Darsi; Maji, Tapas Kumar

doi:10.1039/c9ta05977f

Cited by 82 publications

(56 citation statements)

References 43 publications

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“…[ 108 ] The MOF of AMOF‐1 was synthesized and ion exchange with Pb 2+ occurred, and reacted with CsX(X = Cl, Br, I) to prepare CsPbX 3 –AMOF‐1 heterojunctions. [ 109 ] Similarly, MAPbBr 3 –ZJU‐28 heterojunctions were successfully synthesized with the perovskite NC size tunable from 7.7 to 11 nm by the reaction time (Figure 15b). [ 105 ] The MA containing MOF of MA‐M(HCOO) 3 (M = Mn or Co) was synthesized and ground with PbBr 2 using a pestle and mortar to prepare MAPbBr 3 –MA‐M(HCOO) 3 heterojunctions.…”

Section: Size and Structuresmentioning

confidence: 99%

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

Wang

2020

Small Structures

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Scientific and industrial interest on perovskite semiconductor materials has grown rapidly in recent years. Through the efforts of researchers professionals in chemistry, physics, materials and electronics, etc., many records based on perovskites have been and are being refreshed. The brilliant performances emerge not only from the excellent properties of perovskite themselves, but also originate from the composite material systems of hybridizing perovskites with heteromaterials. Herein, first, the crystal and nanostructures of perovskite materials, semiconductor-based heterojunctions, and the categories of perovskite heterojunction are fundamentally introduced. Then, the state-of-the-art synthesis methods, size and structure control, electron structure-related physical properties, and applications of the perovskite-based nano-heterojunctions are comprehensively reviewed. Finally, perspectives on tackling challenges and developing trends are discussed.

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Section: Size and Structuresmentioning

confidence: 99%

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

Wang

2020

Small Structures

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“…g) Mechanochemical synthesis of PQDs@MOF composites mediated by Pb II exchanged AMOF‐1; h,i) TEM of CsPbCl 3 QDs@AMOF and CsPbBr 3 QDs@AMOF, respectively; Reproduced with permission. [ 92 ] Copyright 2019, Royal Society of Chemistry.…”

Section: Strategies For Constructing Pncs‐based Heterostructuresmentioning

confidence: 99%

Perovskite Nanocrystals‐Based Heterostructures: Synthesis Strategies, Interfacial Effects, and Photocatalytic Applications

Yuan

Chen

et al. 2020

Solar RRL

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Perovskite nanocrystals (PNCs) have recently emerged as a new type of promising photocatalytic semiconductor due to their unique photoelectrochemical properties, including tunable bandgap and crystal structure, entire visible spectral response, and versatile chemical processability. However, under practical circumstance, this type of pure‐phase PNCs photocatalyst demonstrates poor stability, limited light utilization, and high carrier recombination, resulting in low solar power conversion efficiency and inferior catalytic activity. To address these issues, extensive research efforts have been devoted to developing PNCs‐based heterostructures. Thus, a perspective on the development of PNCs‐based heterophotocatalysts is timely. In this Review, the progress of PNCs‐based heterophotocatalysts is presented starting from fundamental properties (i.e., crystal and bandgap structure, photoelectronic properties, etc.) to state‐of‐the‐art applications with a focus on stability improving, dispersion enhancing, and interfacial charge carrier dynamic optimizing. Critical insights are further provided into the existing challenges and prospects for high‐quality PNCs‐based heterostructures in advanced photocatalytic applications.

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“…[63,64] However,t he major challenge is control of the nanostructure,and the assembly of the composite into macroscopic devices directly by am echanochemical process.Arecent report demonstrates that by simply mechanical milling (mortar and pestle) of CsX (X = Cl, Br, or I) and Pb II -containing MOFs,p erovskite can be nucleated on the surface of MOF substrates. [65] Thes ame group later reported grinding aC H 3 NH 3 -containing MOF with PbBr 2 to generate aperovskite-MOF composite. [66] The progress suggests the potential of mechanochemistry for perovskite-MOF composites,a lthough more work is needed to routinely realize one-pot synthesis in this manner.…”

Section: One-pot Synthesismentioning

confidence: 99%

“…Ap erovskite-MOF composite with tunable PL has also been proposed for optical anti-counterfeiting. [65] Evolution of the emission colour has been observed for MAPbBr 3 @Eu-MOF at different temperatures and exciting wavelengths (254 to 365 nm). Similarly,t he PL of MAPbBr 3 @Eu-MOF can be fully quenched and recovered by immersion in water and treatment with MABr,respectively.…”

Section: Information Encryption and Anti-counterfeitingmentioning

confidence: 99%

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Intermarriage of Halide Perovskites and Metal‐Organic Framework Crystals

et al. 2020

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This Review examines how the intermarriage of perovskite and metal‐organic framework crystals brings new paradigms for material design and functionality. The strategic combination of halide perovskites and metal–organic frameworks (MOFs) has generated a new family of porous composite materials that will enable new applications, including optoelectronic, catalysis, sensing, and data encryption. This Review surveys the current progress of this exciting new area. Fundamental aspects, including perovskite nucleation and growth, heterojunction electron–hole transfer, electronic structure, and luminescence within confined spaces, are highlighted, with suggestions of approaches by which guest confinement within MOFs can be synthetically designed. We further address the underlying principles and discuss the new insights and tools for the manipulation of these composite materials for the development of synthetic microporous semiconducting composites, as well as new strategies for host–guest interfacial engineering.

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Mechanochemical synthesis of a processable halide perovskite quantum dot–MOF composite by post-synthetic metalation

Abstract: CsPbX3 perovskite quantum dots mechanochemically synthesized within an anionic MOF show intense luminescence and high solvent stability.

Cited by 82 publications

References 43 publications

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

Perovskite Nanocrystals‐Based Heterostructures: Synthesis Strategies, Interfacial Effects, and Photocatalytic Applications

Intermarriage of Halide Perovskites and Metal‐Organic Framework Crystals

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