Orange emission enhancement by energy transfer in Sr3Al2O5Cl2:Ce3+, Eu2+ phosphor for solid-state lighting
作者： Xinmin Zhang , Boowon Park , Jongsu Kim , Jungjun Lee , Jinchul Choi
DOI: 10.1016/J.JLUMIN.2009.07.030
关键词:
摘要: Abstract Orange-emissive Ce 3+ /Eu 2+ co-doped Sr 3 Al 2 O 5 Cl phosphors were synthesized by a solid-state reaction. The large overlap between the emission spectrum of blue :Ce and excitation orange :Eu , shortening trend in lifetime donors with increasing Eu concentration provide strong evidence energy transfer from to ions. It supports that intensity optimal phosphor is 1.5 times stronger than single -doped one. promising orange-emitting for warm-white-light-emitting diode because its effective near ultraviolet range.
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