Xuanming Zhang, Yang Tang, Chenfeng Lin, Hao Xie, Ronglei Fan, Dongdong Yan, Xiaoyu Wang, Yongfeng Liu, Weixiang Ye
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Ambient-stable Mg2+-doped Cs3Cu2I5 nanocrystals with enhanced photoluminescence for color conversion blue LEDs.
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.
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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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