WLED器件中正硅酸盐荧光粉的光特性及布辉石布局

IF 1.4 4区管理学 Q2 ENGINEERING, MULTIDISCIPLINARY

International Journal of Technology Management Pub Date : 2023-06-28 DOI:10.14716/ijtech.v14i4.5785

M. Thi, Nguyen Le Thai, T. Bui, S. Ho

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引用次数: 0

摘要

．我们创造了一种绿色荧光粉Ca 14-x Eu x Mg 2 [sio4] 8或CMS:Eu 2+，用于WLED器件。由于在eu2 +离子中激发态4f65d和基态4f7之间的转换，该荧光粉在400nm激发时提供了宽光谱，达到了505 nm的最高值。偶极子-偶极子的相互作用似乎是荧光粉电多极性质的主要功率转移。通过临界Eu 2+浓度以及关于功率转移的Dexter假设，我们获得了在12.9 Å和14.9 Å测量的临界距离。通过封装剂，我们将CMS: eu2 +和红色荧光粉与λ最大值为395 nm的LED器件结合在一起，并在20毫安的正向偏置电流下获得了CRI值为91的白色照明。此外，我们还研究了CMS:Eu 2+的布局和光特性。

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The Light Features and Bredigite Layout for Orthosilicate Phosphor in WLED Devices

. We created a green phosphor Ca 14-x Eu x Mg 2 [SiO 4 ] 8 or CMS:Eu 2+ to be utilized in WLED devices. The phosphor offers a wide spectrum achieving the highest value of 505 nm when excited at 400 nm, as a result of a shift between the excited state of 4 f 6 5 d and the ground state of 4 f 7 in an ion of Eu 2+ . The interactivity of dipole-dipole appeared to be a primary power shift for the electrical multipolar nature of the phosphor. We acquired a critical distance measured at 12.9 Å as well as 14.9 Å via a critical Eu 2+ concentration as well as the Dexter hypothesis on power shift. Via an encapsulant, we combined CMS:Eu 2+ as well as a phosphor in red with a LED device having a λ max value of 395 nm and managed to acquire white illumination having a CRI value measured at 91 at a 20-milliampere forward bias current. In addition, we also examined the layout as well as the light features in CMS:Eu 2+ .

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来源期刊

International Journal of Technology Management 管理科学-工程：综合

CiteScore

2.70

自引率

3.60%

发文量

审稿时长

6-12 weeks

期刊介绍： The IJTM aims to provide a refereed and authoritative source of information in the field of managing with technology, and the management of engineering, science and technology. It seeks to establish channels of communication between government departments, technology executives in industry, commerce and related business, and academic experts in the field.