What question did this study set out to answer?

Investigate the mechanism and performance of lead-free, high-efficiency broadband near-infrared emission by incorporating trivalent antimony into cesium zinc halide crystal matrices.

July 10, 2021Advanced Functional Materials

Sb3+‐Doping in Cesium Zinc Halides Single Crystals Enabling High‐Efficiency Near‐Infrared Emission

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Authors

BSBinbin SuXi'an University of Science and Technology MLMingze LiUniversity of North Carolina at Chapel Hill ESEnhai SongSouth China University of Technology

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Implication

Experimental modeling reveals high-efficiency near-infrared emission in antimony-doped cesium zinc halides, indicating potential for eco-friendly night-vision light sources.

Key Points

Investigate the mechanism and performance of lead-free, high-efficiency broadband near-infrared emission by incorporating trivalent antimony into cesium zinc halide crystal matrices.
Synthesized Sb3+-doped Cs2ZnCl4 single crystals and substituted Cl- with Br- to evaluate emission tuning.
Combined experimental optical characterization with density functional theory calculations to evaluate self-trapped exciton behavior.
Constructed a prototype near-infrared light-emitting diode to assess device viability in night-vision applications.
Cs2ZnCl4:Sb3+ achieved a photoluminescence quantum yield of 69.9% with an emission peak at 745 nm and a full width at half maximum of 175 nm.
Anion substitution of Cl- by Br- red-shifted the near-infrared emission peak from 745 nm to 823 nm while preserving air and thermal stability.
The Cs2ZnCl4:Sb3+-based light-emitting diode successfully functioned as an effective non-visible light source for night-vision illumination.

Cite This Study

Su et al. (2021) studied this question.

synapsesocial.com/papers/69d762ccf44a16d01ef30bc9 https://doi.org/10.1002/adfm.202105316

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Implication

Experimental modeling reveals high-efficiency near-infrared emission in antimony-doped cesium zinc halides, indicating potential for eco-friendly night-vision light sources.

Sb3+‐Doping in Cesium Zinc Halides Single Crystals Enabling High‐Efficiency Near‐Infrared Emission

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Implication

Key Points

Cite This Study

Sb3+‐Doping in Cesium Zinc Halides Single Crystals Enabling High‐Efficiency Near‐Infrared Emission

Discussion

Member takes

Implication

Key Points

Cite This Study

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