Na_0.60Ca_0.40Sc_0.60Mg_0.40Si₂O₆:Eu²⁺,Mn²⁺: Tunable full-color-emitting solid-solution phosphor and its energy transfer property

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• 作者：Yuanyuan Zhang ; Zhiguo Xia ; Haikun Liu ; Ziyuan Wang ; Molin Li
• 刊名：Chemical Physics Letters
• 出版年：11 February, 2014
• 年：2014
• 卷：593
• 期：Complete
• 页码：189-192
• 全文大小：1115 K

文摘

Novel Na_0.60Ca_0.40Sc_0.60Mg_0.40Si₂O₆:Eu²⁺,Mn²⁺ (NCSMS:Eu²⁺,Mn²⁺) phosphors have been prepared, and the structural phase is derived from the solid-solution composition in (Na_{1鈭?/sub>xCax)(Sc1鈭?/sub>xMgx)Si2O6 (x = 0.4). The as-prepared phosphor shows full-color white emission with a three-band profile, including the 5d-4f transition of Eu²⁺ in different emission centers (447 and 533 nm) and the d-d transition of Mn²⁺ (654 nm). Energy transfer (ET) from Eu²⁺ to Mn²⁺ in this system is also discussed. A white LED lamp was fabricated by using the composition-optimized phosphor, and the result verified that the phosphor is a promising candidate for w-LEDs application.}