Warm white light and colour tunable characteristics of Dy3+ co-doped with Eu3+ and Pr3+ zinc sodium bismuth borate glasses for solid state lighting applications

2019 ◽  
Vol 234 ◽  
pp. 369-377 ◽  
Author(s):  
Vinod Hegde ◽  
C.S.Dwaraka Viswanath ◽  
K.K. Mahato ◽  
Sudha D. Kamath
Keyword(s):  
Solid State ◽  
White Light ◽  
Solid State Lighting ◽  
Borate Glasses ◽  
Bismuth Borate ◽  
Warm White Light ◽  
Co Doped

Novel Mn4+-activated layered oxide-fluoride perovskite-type KNaMoO2F4 red phosphor for wide gamut warm white light-emitting diodes backlight

2021 ◽  
Author(s):  
Jiao Wu ◽  
Bo Wang ◽  
Zhiyuan Liu ◽  
Kang Zhang ◽  
Xiaoshuang Li ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Red Phosphor ◽  
Red Emission ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Perovskite Type

Mn4+-activated oxidefluoride phosphors are attractive for application in wide solid-state lighting devices because of its distinct red emission at about 630 nm and the abundant storage of Mn4+ ion. However,...

A tunable warm-white-light Sr3Gd(PO4)3:Eu2+,Mn2+phosphor system for LED-based solid-state lighting

2012 ◽  
Vol 36 (1) ◽  
pp. 168-172 ◽  
Author(s):  
Ning Guo ◽  
Yuhua Zheng ◽  
Yongchao Jia ◽  
Hui Qiao ◽  
Hongpeng You
Keyword(s):  
Solid State ◽  
White Light ◽  
Solid State Lighting ◽  
Warm White Light

scholarly journals Color Rendering Index Thermal Stability Improvement of Glass-Based Phosphor-Converted White Light-Emitting Diodes for Solid-State Lighting

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Chun-Chin Tsai
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

High color rendering index performance has been required for phosphor-converted warm-white light-emitting diodes (PC-WWLEDs) in lighting industry. The characteristics of low-temperature fabricated phosphor (yellow: Ce3+:YAG, green: Tb3+:YAG, and red: CaAlClSiN3:Eu2+) doped glass were presented for applications to high color rendering index warm-white-light-emitting diodes. Color coordinates (x, y) = (0.36, 0.29), quantum yield (QY) = 55.6%, color rending index (CRI) = 85.3, and correlated color temperature (CCT) = 3923 K were characterized. Glass-based PC-WWLEDs was found able to maintain good thermal stability for long-time high-temperature operation. QY decay, CRI remenance, and chromaticity shift were also analyzed for glass- and silicone-based high-power PC-WLEDs by thermal aging at 150°C and 250°C for industrial test standard’s aging time 1008 hours. Better than the silicone’s, thermal stability of glass-based PC-WLEDs has been improved. The resulted high color rendering index (CRI) glass phosphor potentially can be used as a phosphor layer for high-performance and low-cost PC-WLEDs used in next-generation indoor solid-state lighting applications.

scholarly journals Optical and dielectric studies for Tb3+/Sm3+ co-doped borate glasses for solid-state lighting applications

2018 ◽  
Vol 86 ◽  
pp. 387-393 ◽  
Author(s):  
Al-B. F.A. Mohammed ◽  
G. Lakshminarayana ◽  
S.O. Baki ◽  
Kh. A. Bashar ◽  
I.V. Kityk ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Lighting ◽  
Borate Glasses ◽  
Dielectric Studies ◽  
Co Doped

Realization of warm white light and energy transfer studies of Dy3+/Eu3+ co-doped Li2O-PbO-Al2O3-B2O3 glasses for lighting applications

2020 ◽  
Vol 222 ◽  
pp. 117166 ◽  
Author(s):  
Nisha Deopa ◽  
Mukesh K. Sahu ◽  
P.R. Rani ◽  
R. Punia ◽  
A.S. Rao
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Warm White Light ◽  
Co Doped
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