TY - GEN
T1 - A potential red-emitting phosphor for UV-white led and fluorescent lamp
AU - Kim, K. U.
AU - Choi, S. H.
AU - Jung, H. K.
AU - Nahm, S.
PY - 2009
Y1 - 2009
N2 - Luminescence properties of NaLnGeO4:Eu3+ (Ln=rare earth) phosphors were investigated. It has a strong red emission under mercury discharge and deep blue/near-UV excitations. With the proper atomic ratio of rare earth ions, Y/Gd, and activator concentration, the emission intensity of Eu3+-activated germanate compound is comparable to that of commercial red-emitting phosphor, Y2O3:Eu3+, under 254 nm excitation with the CIE coordinates are x=0.655. y=0.339. Moreover, the maximum emission intensity is about four times higher than that of SrS:Eu3+ under GaN-based blue light excitations (λex=400-465 nm).
AB - Luminescence properties of NaLnGeO4:Eu3+ (Ln=rare earth) phosphors were investigated. It has a strong red emission under mercury discharge and deep blue/near-UV excitations. With the proper atomic ratio of rare earth ions, Y/Gd, and activator concentration, the emission intensity of Eu3+-activated germanate compound is comparable to that of commercial red-emitting phosphor, Y2O3:Eu3+, under 254 nm excitation with the CIE coordinates are x=0.655. y=0.339. Moreover, the maximum emission intensity is about four times higher than that of SrS:Eu3+ under GaN-based blue light excitations (λex=400-465 nm).
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M3 - Conference contribution
AN - SCOPUS:62849093642
SN - 9780470345009
T3 - Ceramic Engineering and Science Proceedings
SP - 279
EP - 284
BT - Developments in Strategic Materials, Proceedings - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
T2 - Developments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites
Y2 - 27 January 2008 through 1 February 2008
ER -