用于LED应用的Eu3+掺杂无铅Cs2ZnCl4钙钛矿

IF 2.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materialia Pub Date : 2025-10-01 DOI:10.1016/j.mtla.2025.102576

Xinyi Zhang , Zhenzhen Zhu , Xin Xin Gong , Dawei Zhang , Ningrui Sheng , Guangcan Tan , Huayu Liu , Honge Wu

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引用次数: 0

摘要

零维（0D）无铅卤化物钙钛矿由于其低毒性和显著的宽带发射而引起了人们的极大兴趣。本文采用共沉淀法合成了0D无铅Cs2ZnCl4: Eu3+钙钛矿。在274nm激发下，这些材料表现出强烈的红色发射和优异的热稳定性，加热到130℃后保持了初始光致发光（PL）强度的50%。此外，相对于原始状态，PL强度和x射线衍射（XRD）模式在连续三个热循环中都显示出最小的变化。系统优化得到的最佳材料的PL寿命为5.64µs。该系统显示出红色发光二极管（LED）应用的巨大潜力，显示出国际发光委员会（CIE）坐标（0.554,0.341）和相关色温为1404 K。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Eu3+- doped lead-free Cs2ZnCl4 perovskite for LED applications

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Eu3+- doped lead-free Cs2ZnCl4 perovskite for LED applications

Zero-dimensional (0D) lead-free halide perovskites have attracted significant interest due to their low toxicity and remarkable broadband emissions. Herein, 0D lead-free Cs₂ZnCl₄: Eu³⁺ perovskites were synthesized via co-precipitation. Under 274 nm excitation, these materials exhibit strong red emission and exceptional thermal stability, retaining > 50 % of initial photoluminescence (PL) intensity after heating to 130 °C. Furthermore, both PL intensity and X-ray diffraction (XRD) patterns show minimal variation across three consecutive thermal cycles relative to the pristine state. Systematic optimization yielded an optimal material with a 5.64 µs PL lifetime. This system demonstrates significant potential for red-emitting light-emitting diode (LED) applications, exhibiting Commission International de L’Eclairage (CIE) coordinates of (0.554, 0.341) and a correlated color temperature of 1404 K.

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来源期刊

Materialia MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.40

自引率

2.90%

发文量

345

审稿时长

36 days

期刊介绍： Materialia is a multidisciplinary journal of materials science and engineering that publishes original peer-reviewed research articles. Articles in Materialia advance the understanding of the relationship between processing, structure, property, and function of materials. Materialia publishes full-length research articles, review articles, and letters (short communications). In addition to receiving direct submissions, Materialia also accepts transfers from Acta Materialia, Inc. partner journals. Materialia offers authors the choice to publish on an open access model (with author fee), or on a subscription model (with no author fee).