Generation of green, red and white light from rare-earth doped Ga2O3 nanoparticles

2009 ◽  
Vol 473 (1-3) ◽  
pp. 151-154 ◽  
Author(s):  
Godhuli Sinha ◽  
Amitava Patra
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Rare Earth Doped

Enhanced luminescence of Mn4+:Y3Al5O12red phosphor via impurity doping

2016 ◽  
Vol 4 (8) ◽  
pp. 1704-1712 ◽  
Author(s):  
Daqin Chen ◽  
Yang Zhou ◽  
Wei Xu ◽  
Jiasong Zhong ◽  
Zhenguo Ji ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Glass Ceramics ◽  
Red Phosphor ◽  
Light Emitting ◽  
Impurity Doping ◽  
Enhanced Luminescence ◽  
White Light Emitting Diodes ◽  
Rare Earth Doped

A non-rare-earth doped Mn4+:Y3Al5O12red phosphor and the related glass–ceramics were fabricated to explore their application in white light-emitting diodes.

scholarly journals White light emissions through down-conversion of rare-earth doped LaF3nanoparticles

2006 ◽  
Vol 14 (23) ◽  
pp. 11412 ◽  
Author(s):  
Jeffrey R. DiMaio ◽  
Baris Kokuoz ◽  
John Ballato
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Down Conversion ◽  
Rare Earth Doped

Synthesis and Research of rare earth-doped color tunable Sr3Gd(PO4)3 phosphors

2019 ◽  
Vol 33 (18) ◽  
pp. 1950201
Author(s):  
Boxin Liang ◽  
Shuangping Yi ◽  
Gengqiao Hu ◽  
Zhixiong Fang ◽  
Zhengfa Hu
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Dipole Interaction ◽  
Critical Distance ◽  
Solid State Method ◽  
Excitation Peak ◽  
Good Thermal Stability ◽  
Emission Color ◽  
Color Tunable ◽  
Rare Earth Doped

Rare earth-doped Sr3Gd(PO4)3 and emission color tunable phosphors Ce[Formula: see text]/Sm[Formula: see text] co-doped Sr3Gd(PO4)3 have been synthesized by a traditional solid-state method. These phosphors were characterized by X-ray diffraction (XRD), FE-SEM, diffuse reflectance spectra (DRS), photoluminescence spectra and lifetime measurements. The quenching concentration of Ce[Formula: see text] ions in Sr3Gd(PO4)3 was about 9 mol.%. An effective energy transfer (ET) from Ce[Formula: see text] ions to Sm[Formula: see text] ions in Sr3Gd(PO4)3 was speculated by the overlapped spectrum for the emission peak of Ce[Formula: see text] and the excitation peak of Sm[Formula: see text] ions. It is demonstrated that the ET mechanism is resonant through the dipole–dipole interaction and the critical distance between Ce[Formula: see text] and Sm[Formula: see text] in Sr3Gd(PO[Formula: see text] is calculated to 15.22 Å. Moreover, Sr3Gd[Formula: see text](PO4)3:0.09Ce[Formula: see text], xSm[Formula: see text] can be adjusted systematically by generating blue light to white light in the CIE diagram which coincide with the ET process of Ce[Formula: see text] ions to Sm[Formula: see text] ions. The Sr3Gd[Formula: see text](PO4)3:0.09Ce[Formula: see text], 0.01Sm[Formula: see text] phosphor also perform at a good thermal stability. All of these experimental results in this work can be served as a potential multicolor tunable phosphor for ultraviolet pumped white light appliance.

Recent development in rare earth doped phosphors for white light emitting diodes

2015 ◽  
Vol 33 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Yuhua WANG ◽  
Ge ZHU ◽  
Shuangyu XIN ◽  
Qian WANG ◽  
Yanyan LI ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Rare Earth Doped

Rare Earth Doped Glasses for Displays and Light Generation

2014 ◽  
Vol 90 ◽  
pp. 174-178 ◽  
Author(s):  
Ulises Caldiño ◽  
Marco Bettinelli ◽  
Maurizio Ferrari ◽  
Elisa Pasquini ◽  
Stefano Pelli ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Optical Waveguides ◽  
Present Contribution ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Doped Glasses ◽  
Glass Phosphor ◽  
White Light Emitting Diodes ◽  
Rare Earth Doped

Glasses are very versatile materials, also because of the ease of doping them with various elements and compounds. In particular, rare-earth-doped glasses have greatly contributed to the development of optical amplifiers, lasers, active optical waveguides and white-light-emitting devices. White light emitting diodes (W-LEDs) and color LEDS obtained by the combination of an UV emitting LED, such as AlGaN-based LED, with a glass phosphor exhibit very interesting properties. In the present contribution we report the luminescence characteristics of zinc-sodium-aluminosilicates glasses variously doped, namely either singly doped with Eu3+, Tb3+or Sm3+, or co-doped with Tb3+-Eu3+, Tb3+-Sm3+and Tb3+-Ce3+. These glasses have also proved to be suitable for ion exchange and therefore for the production of active optical waveguides.

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