Color tunable and energy transfer mechanism of Dy3+ and Eu3+ rare earth ions activated NaCaBi2(PO4)3 eulytite type phosphor for NUV excitable warm white light emitting diodes

Optik ◽  
2019 ◽  
Vol 186 ◽  
pp. 221-230 ◽  
Author(s):  
E. Annie Rathnakumari ◽  
M. Jayachandiran ◽  
S. Masilla Moses Kennedy
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Rare Earth Ions ◽  
Energy Transfer Mechanism ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Tunable ◽  
White Light Emitting Diodes

Standard approach for energy transfer scheme and tunable emission for white light-emitting diodes (W-LEDs)

2016 ◽  
Vol 30 (25) ◽  
pp. 1650179
Author(s):  
S. T. Taide ◽  
N. B. Ingle ◽  
S. K. Omanwar
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Precipitation Method ◽  
Energy Transfer Mechanism ◽  
Efficient Energy Transfer ◽  
Emission Analysis ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Tunable Emission

Rare-earth (RE) activated (Dy[Formula: see text]/Sm[Formula: see text] and Ce[Formula: see text]/Tb[Formula: see text]) polycrystalline CaSO4 phosphors were prepared by co-precipitation method. Powder XRD pattern confirmed their structure and phase, while FE-SEM investigation reflected the particle morphology. The optical absorption and emission analysis were carried out to find efficient energy transfer within codoped phosphors, a possible energy transfer mechanism was discussed and energy transfer efficiencies were calculated. The multicolor emission from these materials suggests sustainable and well-defined approach towards possibility of obtaining tunable emission for producing while light emission, which finds potential applications in field emission display (FED) and white light-emitting diodes (W-LEDs).

scholarly journals Highly efficient non-rare-earth red emitting phosphor for warm white light-emitting diodes

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Haomiao Zhu ◽  
Chun Che Lin ◽  
Wenqin Luo ◽  
Situan Shu ◽  
Zhuguang Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Red Emitting Phosphor

ChemInform Abstract: Fabrication and Application of Non-Rare Earth Red Phosphors for Warm White-Light-Emitting Diodes.

ChemInform ◽  
2015 ◽  
Vol 46 (52) ◽  
pp. no-no
Author(s):  
Qiang Zhou ◽  
Yayun Zhou ◽  
Zhengliang Wang ◽  
Yong Liu ◽  
Guo Chen ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Red Phosphors ◽  
Warm White Light ◽  
White Light Emitting Diodes

Deep red MGe4O9:Mn4+(M = Sr, Ba) phosphors: structure, luminescence properties and application in warm white light emitting diodes

2016 ◽  
Vol 4 (26) ◽  
pp. 6409-6416 ◽  
Author(s):  
Sisi Liang ◽  
Mengmeng Shang ◽  
Hongzhou Lian ◽  
Kai Li ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Luminescence Properties ◽  
Practical Application ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes

The structure, luminescence and practical application of Mn4+doped MGe4O9(M = Ba, Sr) non-rare earth phosphors are investigated.

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