Spectral adjustable Re-Cs3Cu2I5 nanocrystal-in-glass composite with long-term stability

Yang, Qihua; Wei, Hanqi; Li, Guihua; Zhao, Shujuan; Ao, Yuchen; Liu, Xuan; Fu, Le; Cai, Gemei

doi:10.1016/j.cej.2024.149288

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.149288

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Spectral adjustable Re-Cs3Cu2I5 nanocrystal-in-glass composite with long-term stability

Qihua Yang,

Hanqi Wei,

Guihua Li

et al.

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Cited by 4 publications

References 51 publications

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Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Wang,

Meng,

Nie

et al. 2024

Advanced Optical Materials

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The development of all‐inorganic lead‐free Cs3Cu2I5 perovskite materials has garnered significant attention due to their non‐toxic nature and unique optoelectronic properties, particularly in the field of X‐ray detection. However, the stability of perovskites remains a major concern for their optical applications. In this study, a highly stable Cs3Cu2I5‐in‐glass composite (Cs3Cu2I5@Borosilicate) is fabricated by spark plasma sintering (SPS), a rapid and low‐temperature sintering process. The Cs3Cu2I5@Borosilicate composite exhibits strong photoluminescence even after prolonged immersion in various polar solvents, whereas Cs3Cu2I5 perovskite loses its photoluminescence within seconds. Moreover, the Cs3Cu2I5@Borosilicate composite demonstrates robust radio‐luminescence under X‐ray irradiation, and its potential as a scintillator material is validated through prototype X‐ray imaging with a high spatial resolution (≈7 lp mm−1). This innovative composite material holds immense potential for scintillation applications and represents a promising approach for encapsulating perovskites in a transparent amorphous medium.

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Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Wang,

Meng,

Nie

et al. 2024

Advanced Optical Materials

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Synthesis and properties of undoped and Tb3+-doped CsPbF3 QDs-in-glasses for ultraviolet emitter and optical thermometry

Liu,

Yang,

et al. 2024

Journal of Rare Earths

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Enhancing Emission and Stability in Na-Doped Cs3Cu2I5 Nanocrystals

Guo,

Liu,

Cao

et al. 2024

Nanomaterials

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Lead-free Cs3Cu2I5 metal halides have garnered significant attention recently due to their non-toxic properties and deep-blue emission. However, their relatively low photoluminescence quantum efficiency and poor stability have limited their applications. In this work, sodium iodide (NaI) is used to facilitate the synthesis of Cs3Cu2I5 nanocrystals (NCs), demonstrating improved photoluminescence intensity, photoluminescence quantum yield, and stability. Systematic optoelectronic characterizations confirm that Na+ is successfully incorporated into the Cs3Cu2I5 lattice without altering its crystal structure. The improved Photoluminescence Quantum Yield (PLQY) and stability are attributed to the strengthened chemical bonding, which effectively suppresses vacancy defects in the lattice. Additionally, light-emitting diodes (LEDs) based on 10% NaI-doped Cs3Cu2I5 NCs were assembled, emitting vibrant blue light with a maximum radiant intensity of 82 lux and Commission Internationale de l’Eclairage (CIE) chromaticity coordinates of (0.15, 0.1). This work opens new possibilities for commercial lighting display applications.

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Spectral adjustable Re-Cs3Cu2I5 nanocrystal-in-glass composite with long-term stability

Cited by 4 publications

References 51 publications

Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Synthesis and properties of undoped and Tb3+-doped CsPbF3 QDs-in-glasses for ultraviolet emitter and optical thermometry

Enhancing Emission and Stability in Na-Doped Cs3Cu2I5 Nanocrystals

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Resources

About

Spectral adjustable Re-Cs3Cu2I5 nanocrystal-in-glass composite with long-term stability

Cited by 4 publications

References 51 publications

Fabrication of Highly Stable Cs3Cu2I5‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Fabrication of Highly Stable Cs3Cu2I5‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Synthesis and properties of undoped and Tb3+-doped CsPbF3 QDs-in-glasses for ultraviolet emitter and optical thermometry

Enhancing Emission and Stability in Na-Doped Cs3Cu2I5 Nanocrystals

Contact Info

Product

Resources

About

Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique

Fabrication of Highly Stable Cs₃Cu₂I₅‐in‐Glass Composite for X‐Ray Imaging by SPS Technique