Luminescence Characteristics of Mg2+·Ba2+Co-Doped Sr2SiO4:Eu Yellow Phosphor for Light Emitting Diodes

2007 ◽  
Vol 44 (3) ◽  
pp. 147-151 ◽  
Author(s):  
Kyoung-Jae Choi ◽  
Soon-Duk Jee ◽  
Chang-Hae Kim ◽  
Sang-Hyuk Lee ◽  
Ho-Kun Kim
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Yellow Phosphor ◽  
Luminescence Characteristics ◽  
Co Doped

Application of Ba[sup 2+]⋅Mg[sup 2+] Co-doped Sr[sub 2]SiO[sub 4]:Eu Yellow Phosphor for White-Light-Emitting Diodes

2005 ◽  
Vol 152 (8) ◽  
pp. H121 ◽  
Author(s):  
Joung Kyu Park ◽  
Kyoung Jae Choi ◽  
Seung Hyok Park ◽  
Chang Hae Kim ◽  
Ho Kon Kim
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Yellow Phosphor ◽  
White Light Emitting Diodes ◽  
Co Doped

Unraveling the Role of Crystallization Dynamics on Luminescence Characteristics of Perovskite Light‐Emitting Diodes

2021 ◽  
pp. 2100023
Author(s):  
Kong‐Chao Shen ◽  
Jing‐Kun Wang ◽  
Yang Shen ◽  
Yan‐Qing Li ◽  
Ming‐Lei Guo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Crystallization Dynamics ◽  
Luminescence Characteristics

Reduced Working Temperature of Quantum Dots-Light-Emitting Diodes Optimized by QDs@Silica-on-Chip Structure

2018 ◽  
Author(s):  
Bin Xie ◽  
Haochen Liu ◽  
Xiao Wei Sun ◽  
Xingjian Yu ◽  
Kai Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Temperature Stability ◽  
Phosphor Layer ◽  
Light Emitting ◽  
Yellow Phosphor ◽  
Working Temperature ◽  
On Chip ◽  
White Light Emitting Diodes ◽  
Color Rendering

White light-emitting diodes (WLEDs) composed of blue LED chip, yellow phosphor, and red quantum dots (QDs) are considered as a potential alternative for next-generation artificial light source with their high luminous efficiency (LE) and color-rendering index (CRI). While, QDs’ poor temperature stability and the incompatibility of QDs/silicone severely hinder the wide utilization of QDs-WLEDs. To relieve this, here we proposed a separated QSNs/phosphor structure, which composed of a QSNs-on-chip layer with a yellow phosphor layer above. A silica shell was coated onto the QDs surface to solve the compatibility problem between QDs and silicone. With CRI > 92 and R9 > 90, the newly proposed QDs@silica nanoparticles (QSNs) based WLEDs present 16.7 % higher LE and lower QDs working temperature over conventional mixed type WLEDs. The reduction of QDs’ temperature can reach 11.5 °C, 21.3 °C and 30.3 °C at driving current of 80 mA, 200 mA and 300 mA, respectively.

Luminescence properties and energy transfer of Ce3+/Tb3+ co-doped Ca6Ba(PO4)4O phosphor for near-UV pumped light-emitting diodes

2015 ◽  
Vol 3 (16) ◽  
pp. 4197-4204 ◽  
Author(s):  
Mingyue Chen ◽  
Zhiguo Xia ◽  
Quanlin Liu
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
Light Emitting Diodes ◽  
Energy Transfer Process ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Co Doped

The energy transfer process from Ce3+ to Tb3+ in Ca6Ba(PO4)4O and its mechanisms have been studied.

Photoluminescence and energy transfer studies on Eu2+ and Ce3+ co-doped SrCaSiO4 for white light-emitting-diodes

2011 ◽  
Vol 509 (23) ◽  
pp. 6635-6639 ◽  
Author(s):  
Hong Yu ◽  
Yawen Lai ◽  
Guimei Gao ◽  
Li Kong ◽  
Guanghuan Li ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Co Doped

Photoluminescence and energy transfer studies on Ce3+/Eu2+ co-doped Ba3Si6O12N2 phosphor for white light-emitting-diodes

2013 ◽  
Vol 295 ◽  
pp. 129-133 ◽  
Author(s):  
Chenxia Li ◽  
Hong Chen ◽  
Youjie Hua ◽  
Lanlan Yu ◽  
Qingyun Jiang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Co Doped
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