论文信息 - Luminescence Characteristics of Sr3MgSi2 O 8 : Eu Blue Phosphor for Light-Emitting Diodes

Luminescence Characteristics of Sr3MgSi2 O 8 : Eu Blue Phosphor for Light-Emitting Diodes

We have synthesized a Eu 2 + -activated Sr 3 MgSi 2 O 8 blue phosphor and investigated an attempt to develop blue light-emitting diodes (LEDs) by combining it with an InGaN blue LED chip (λ e m = 405 nm). The InGaN-based Sr 3 MgSi 2 O 8 :Eu LED lamp shows two bands at 405 and 460 nm. The 405 nm emission band is due to a radiative recombination from a InGaN active layer. This 405 nm emission was used as an optical pump for the excitation of the Sr 3 MgSi 2 O 8 :Eu phosphor. The 460 nm emission band is ascribed to a radiative recombination of Eu 2 + impurity ions in the Sr 3 MgSi 2 O 8 host matrix.

Chang Hae Kim | J. Park | H. Park | K. Choi | H. Kim

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