由荧光碳化硅和氮化物基近紫外发光二极管组成的混合封装白光发光二极管

IF 2 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Physica Status Solidi A-applications and Materials Science Pub Date : 2024-07-09 DOI:10.1002/pssa.202400118

Taisei Mizuno, Syota Akiyoshi, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama, Yiyu Ou, Haiyan Ou

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引用次数: 0

摘要

荧光碳化硅（f-SiC）和多孔碳化硅的组合是一种很有前途的纯白光荧光粉材料。本文优化了阳极氧化条件，以制备多孔 f-SiC。此外，还制作了一种由 f-SiC/多孔 f-SiC 叠层组成的混合封装白光发光二极管 (LED) 封装，并使用氮化物基 NUV-LED 作为激发光源。在 10 mA 的正向电流下，NUV-LED 可以发出明显的纯白光，并达到 11.6 lm W-1 的峰值光效。在峰值光效下，由于封装涉及多种类型的光学和能量损耗，估计 f-SiC/ 多孔 f-SiC 叠层的内部量子效率≈80%。

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Hybridly Packaged White Light Emitting Diode Composed of Fluorescent SiC and Nitride‐Based Near‐Ultraviolet Light Emitting Diode

A combination of fluorescent SiC (f‐SiC) and porous f‐SiC is a promising phosphor material for pure white light emission. Herein, the anodic oxidation condition is optimized to produce porous f‐SiC. Furthermore, a hybridly packaged white light emitting diode (LED) package composed of f‐SiC/porous f‐SiC stacks with a nitride‐based NUV‐LED as an excitation source is fabricated. A distinct pure white light emission and the peak luminous efficacy of 11.6 lm W−1 at a forward current of 10 mA in the NUV‐LED are observed. At the peak luminous efficacy, the estimated internal quantum efficiency of the f‐SiC/porous f‐SiC stacks is ≈80% as the package involved several types of optical and energy losses.

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.