Luminescence and energy transfer in Eu, Mn co-doped Li4SrCa(SiO4)2 for white light-emitting-diodes |
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| Authors: | Xin Min Zhang Wen Lan Li Hyo Jin Seo |
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| Institution: | aSchool of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;bDepartment of Physics, Pukyong National University, Busan 608-737, Republic of Korea |
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| Abstract: | Li4(Sr0.96Eu0.04)(Ca1 − xMnx)(SiO4)2 phosphors were synthesized by solid-state reactions and photoluminescence (PL) properties were investigated. These phosphors have intense absorption in n-UV region, which is suitable for excitation of UV LEDs. The orange-reddish emission of Mn2+ can be adjusted by changing the Mn2+/Eu2+ ratio. Energy transfer from Eu2+ to Mn2+ is observed. Li4(Sr0.96Eu0.04)(Ca1 − xMnx)(SiO4)2 phosphors could be used in white LEDs. |
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| Keywords: | Luminescence Phosphors White LEDs Energy transfer |
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