Emission characteristics of inorganic/organic hybrid white-light phosphor |
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| Authors: | KM Lee KW Cheah BL An ML Gong YL Liu |
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| Institution: | (1) Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China;(2) School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, P.R. China;(3) Department of Chemistry, Jinan University, Guangzhou, P.R. China |
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| Abstract: | A white-light light-emitting diode (LED) was successfully fabricated by converting near-UV LED emission (390–420 nm) with a new inorganic/organic hybrid phosphor. This new white-light phosphor consisted of three fluorescence materials; two strontium aluminates based with lanthanide oxides, SrAl2O4:Eu2+ (for green (520 nm) emission) and Sr4Al14O25:Eu2+ (for blue (490 nm) emission) and a new organic Eu metal complex, Eu(BTFA)3phen (for red (614 nm) emission). These materials have good absorption in the 300–500-nm range and have high quantum efficiencies (4.7–24.5%). The white phosphor has a CIE value of (0.321, 0.365). PACS 42.70.-aj; 78.40.-q; 78.55.-m; 81.05.Lg |
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