Ambient-stable Mg2+-doped Cs3Cu2I5 nanocrystals with enhanced photoluminescence for color conversion blue LEDs.

IF 3.1 2区 物理与天体物理 Q2 OPTICS
Optics letters Pub Date : 2025-06-15 DOI:10.1364/OL.560908
Xuanming Zhang, Yang Tang, Chenfeng Lin, Hao Xie, Ronglei Fan, Dongdong Yan, Xiaoyu Wang, Yongfeng Liu, Weixiang Ye
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引用次数: 0

Abstract

We successfully synthesized Mg2+-doped Cs3Cu2I5 nanocrystals (NCs) under ambient conditions. The 10% Mg2+-doped Cs3Cu2I5 NCs exhibit significantly enhanced optical properties, achieving a photoluminescence quantum yield (PLQY) of 25.80% and a narrow emission full width at half maximum (FWHM) of 78 nm. The 10% Mg2+-doped NCs also exhibited improved thermal and water stability, retaining 67% of their initial photoluminescence (PL) intensity when heated from 25°C to 100°C and maintaining blue light emission after 30 min in aqueous environments. When integrated into a color conversion LED, these NCs achieved simultaneous improvements in emission characteristics, showing a narrowed FWHM (81 nm) and higher emission efficiency compared to undoped counterparts.

环境稳定的Mg2+掺杂Cs3Cu2I5纳米晶体与增强光致发光的颜色转换蓝色led。
我们成功地在常温条件下合成了Mg2+掺杂的Cs3Cu2I5纳米晶体。10% Mg2+掺杂的Cs3Cu2I5纳米具有明显增强的光学性能,实现了25.80%的光致发光量子产率(PLQY)和78 nm的半峰窄发射全宽度(FWHM)。10% Mg2+掺杂的nc也表现出了更好的热稳定性和水稳定性,当从25°C加热到100°C时,其初始光致发光(PL)强度保持67%,并且在水环境中30分钟后仍保持蓝光发射。当集成到彩色转换LED中时,这些nc同时实现了发射特性的改善,与未掺杂的nc相比,显示出更窄的FWHM (81 nm)和更高的发射效率。
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来源期刊
Optics letters
Optics letters 物理-光学
CiteScore
6.60
自引率
8.30%
发文量
2275
审稿时长
1.7 months
期刊介绍: The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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