Zero-dimensional hybrid tin halides with stable broadband light emissions

Lv, Jing-Ning; Zhang, Jie; Liu, Yu-Meng; Zhang, Shao-Ya; Deng, Xiang-Yuan; Xu, Man; Lei, Xiao-Wu; Chen, Zhi-Wei; Yue, Cheng-Yang

doi:10.1039/d3dt03937d

Cited by 4 publications

(1 citation statement)

References 48 publications

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“…Metal halide perovskites with zero-dimensional structures have attracted significant interest for their potential applications. 9,10 These materials possess unique characteristics due to their isolated metal halide octahedra units or clusters. A recent review by Tang et al comprehensively explored the synthesis, properties, and potential applications of zero-dimensional metal halide perovskites.…”

Section: Introductionmentioning

confidence: 99%

Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles

Ben Bechir,

Akermi,

Alathlawi

2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles

Ben Bechir,

Akermi,

Alathlawi

2024

RSC Adv.

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Self–Trapped Exciton versus Band–Edge Electron Transitions: Insights of the Factors Affecting the Optical Properties of Lead–Free Sn–Halide Perovskites

Gualdrón‐Reyes

2024

Advanced Optical Materials

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Lead–free Sn–halide perovskites (Sn–HPs) are attractive photomaterials due to their lower toxicity, and some of them with higher stability against moisture and water, compared to their Pb‐based analogous. Interestingly, Sn‐HPs can exhibit two types of optical characteristics: the first scenario is known as band‐edge electron transitions [or band‐to‐band (b‐b) emission], where accumulated electrons in the conduction band recombine with holes in the valence band, providing a close separation between the absorption edge/photoluminescence (PL) peak (small Stokes shift). The second scenario is denominated as self‐trapped exciton (STE), where intraband gap energy states are formed to trap photocarriers generated in the perovskite, producing a broadband PL and a large Stokes shift. These optical features have been suitable for developing prominent devices, but there is no consolidated explanation about the key factors influencing the emergence of b–b emission or STE in Sn‐HPs, mainly the presence of these PL mechanisms in a particular perovskite system. This review highlights how the chemical composition, structural defects, and synthetic procedures are pivotal to producing Sn‐HPs with specific b–b or STE features. This will allow the preparation of Sn‐HPs with better quality/stability, and facile modulation of their PL properties, expanding their future applicability in LCD technologies.

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Single‐Component White Emissive Organic–Inorganic Hybrid Copper Halide Composite Films for Remote UV‐pumped White Light‐Emitting Diodes with High Color Rendering Index

Liu,

Xie

et al. 2024

Advanced Optical Materials

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Lead‐free organic–inorganic metal halides (OIMHs) are highly desirable owing to their remarkable properties including low toxicity, structural diversity, high stability, and solution processability. Nevertheless, the development of their single‐component white emissive films remains a formidable challenge for remote white light‐emitting diodes (WLEDs) application. In this work, (C16H36N)2Cu2I4/polyvinylidene fluoride (PVDF) white emissive composite film is successfully fabricated through an in situ solvent evaporation crystallization process at room temperature. The elemental analysis and bonding between (C16H36N)2Cu2I4 and PVDF are demonstrated by X‐ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) measurements. In addition, this composite film exhibits a broadband white emission with two peaks. Notably, the best photoluminescence quantum yields (PLQYs) of the PVDF based composite film reaches an impressive 96.7%. A (C16H36N)2Cu2I4/PVDF based remote UV‐pumped WLEDs with an impressive color rendering index of 95.5 is realized. Finally, the in situ fabrication method is expanded to fabricate (C16H36N)2Cu2I4/polyacrylonitrile (PAN) composite films, and we further realized their single component remote WLEDs.

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Zero-dimensional hybrid tin halides with stable broadband light emissions

Abstract: Considering the instability and toxic of 3D Pb-based perovskite nanocrystals, lead-free low dimensional organic-inorganic hybrid metal halides have attracted widespread attention as a potential substitute. Herein, two new tin based...

Cited by 4 publications

References 48 publications

Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles

Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles

Self–Trapped Exciton versus Band–Edge Electron Transitions: Insights of the Factors Affecting the Optical Properties of Lead–Free Sn–Halide Perovskites

Single‐Component White Emissive Organic–Inorganic Hybrid Copper Halide Composite Films for Remote UV‐pumped White Light‐Emitting Diodes with High Color Rendering Index

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Zero-dimensional hybrid tin halides with stable broadband light emissions

Abstract: Considering the instability and toxic of 3D Pb-based perovskite nanocrystals, lead-free low dimensional organic-inorganic hybrid metal halides have attracted widespread attention as a potential substitute. Herein, two new tin based...

Cited by 4 publications

References 48 publications

Understanding charge transport and dielectric relaxation properties in lead-free Cs2ZrCl6 nanoparticles

Understanding charge transport and dielectric relaxation properties in lead-free Cs2ZrCl6 nanoparticles

Self–Trapped Exciton versus Band–Edge Electron Transitions: Insights of the Factors Affecting the Optical Properties of Lead–Free Sn–Halide Perovskites

Single‐Component White Emissive Organic–Inorganic Hybrid Copper Halide Composite Films for Remote UV‐pumped White Light‐Emitting Diodes with High Color Rendering Index

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Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles

Understanding charge transport and dielectric relaxation properties in lead-free Cs₂ZrCl₆ nanoparticles