氟硫化物黃光螢光材料、製備方法及其白光發光二極體

專利類型

發明

專利國別 (專利申請國家)

大陸

專利申請案號

201110087493.3

專利證號

ZL 201110087493.3

專利獲證名稱

氟硫化物黃光螢光材料、製備方法及其白光發光二極體

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2013/10/16

技術說明

本發明揭露一系列新穎組成氟硫化物橘黃光螢光粉，以作為白光LED使用光源用途螢光粉：(A1-x-yCexBy)2Ca1-zSrzF4S2 (A = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; B = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; 0＜x≦1, 0≦y≦1, 0≦z≦1)，該系列螢光粉配方最佳化學組成為：(Y0.99Ce0.01)2CaF4S2，其激發光譜顯示本發明在470 nm波段激發時，可製作出3000K之暖白光且演色性約為85，可提供白光LED藍光螢光粉新選擇。 Several series of novel composition yellow-emitting phosphors with the compositions of (A1-x-yCexBy)2Ca1-zSrzF4S2 (A = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; B = Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; 0＜x≦1, 0≦y≦1, 0≦z≦1) have been synthesized and investigated as potential, orange-to-yellow-emitting phosphors for white light-emitting diodes (WLEDs). The optimal substitution content of Ce for A has been determined to be 1 mol%. The photoluminescence (PL) emission, excitation (PLE) spectra and device characteristics for the synthesized phosphors have been measured, investigated. Upon excitation using blue light with wavelengths of 250~570 nm, a broad emission band peaking at 500~800 nm occurs. The optimum compositions of the new phosphor have also been determined to be (Y0.99Ce0.01)2CaF4S2 and can be used as the alternative phosphors applied for blue-emmiting diodes for white LEDs .

備註

本部(收文號1090020336)同意該校109年4月6日交大研產學字第1091002952號函申請終止維護專利(交大)

連絡單位 (專責單位/部門名稱)

智慧財產權中心

連絡電話

03-5738251

網址