Browsing by Author "Chen Teng-Ming"

Now showing 1 - 9 of 9

Phosphors and light-emitting devices using the same
(2013-01-29)
Chen Teng-Ming
;
Kuo Te-Wen
The present invention relates to novel phosphors, which are represented by a formula of (A1-xMx)8D12O24S2, wherein x, A, M and D are defined the same as the specification. In addition, the present invention further provides a light-emitting device using the above novel phosphors.
Phosphors and lighting apparatus using the same
(2012-01-10)
Chen Teng-Ming
;
Tai Hsiao-Ping
A phosphor has a chemical formula of: Am(Ba1-xEux)nPyOz, wherein A is at least one of the group consisting of Li, Na and K, while 0
Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes
(2013-03-26)
Chen Teng-Ming
;
Wu Yun-Chen
Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0
Red and Green Fluorosulfide Phosphor, Preparation Method and White-Light Emitting Diodes
(2011-08-18)
Chen Teng-Ming
;
Wu Yun-Chen
Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0
Red and Green Fluorosulfide phosphor, Preparation Method and White-Light Emitting Diodes Thereof
(2013-07-11)
Chen Teng-Ming
;
Wu Yun-Chen
Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0
Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes thereof
(2013-10-08)
Chen Teng-Ming
;
Wu Yun-Chen
Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0
Vacuum ultraviolet spectral investigations on green-emitting Ca (La, Gd)(4) Si3O13 : Tb3+ phosphors for PDP applications
(2006-12-01)
Wu Chia-Chin
;
Cheng Bing-Ming
;
Chen Teng-Ming
;
應用化學系
;
Department of Applied Chemistry
In an effort to develop new green-emitting PDP phosphors with high efficiency, investigated were the synthesis, VUV photoluminescence (PL) spectra, optical properties, and chromaticity of Ca(La1-x-yTbxGdy)(4)Si3O13 phosphors by using synchrotron radiation. Upon analysis of the VUV spectroscopic and chromaticity investigations on the new green-emitting VUV phosphors, were an optimized composition achieved. The PLE spectral studies show that Ca(La1-x-y TbxGdy)(4)Si3O13 exhibit significant absorption in the VUV range. The VUV PL intensity was found to enhance with Gd3+ - doping. Furthermore, the 1931 CIE chromaticity coordinates of Ca(La,Gd)(4)Si3O13:Tb were found to be (0.286, 0.548), as compared to (0.230, 0.712) for Zn2SiO4:Mn2+ as a reference. The potential application of Ca(La,Gd)(4)Si3O13:Tb as a new green-emitting PDP phosphor are being currently improving and evaluating.
Yellow fluorosulfide phosphors for light-emitting diode and preparation method thereof
(2014-04-22)
Chen Teng-Ming
;
Wu Yun-Chen
A novel yellow phosphor of a fluorosulfide having a chemical formula of (A1-x-yCexBy)2Ca1-zSrzF4S2 and a tetragonal crystal phase is disclosed, wherein A and B are different rare earth metals other than Ce, the values of x, y, z are 0
Yellow phosphor having oxyapatite structure, preparation method and white light-emitting diode thereof
(2013-05-21)
Chen Teng-Ming
;
Huang Chien-Hao
A yellow phosphor having oxyapatite structure, preparation method and white light-emitting diode thereof are disclosed. The yellow phosphor has a chemical formula of (A1−xEux)8−yB2+y(PO4)6−y(SiO4)y(O1−zSz)2, wherein A and Eu are divalent metal ions, B is a trivalent metal ion, 0