丽丽;张骋;冯涛;徐海芳;李强;

• 1:华东师范大学化学系
• 2:上海应用技术学院材料工程系
• 3:中科院上海硅酸盐研究所

摘要(Abstract)：

以SiO2,A lC l3.6H2O,Eu(NO3)3、氨水为原料,用溶胶凝胶法制备了前驱物通过碳热还原氮化法(CRN)获得了Eu2+掺杂S i3A l3O3N5(β-S ialon)荧光发光材料。应用X射线衍射(XRD)仪、扫描电子显微镜(SEM)、荧光分光光度计研究了Eu2+掺杂S i3A l3O3N5(-βS ialon)荧光粉物相、形貌及发光性能。在0.45 L.m in-1N2流条件下1380℃保温6 h得到较纯棒状形貌的S i3A l3O3N5(β-S ialon)相。Eu2+掺杂S i3A l3O3N5(β-S ialon)在紫外光部分具有强烈的吸收,其激发光谱的峰值波长为²80 nm,发射光谱的峰值波长为280 nm,发射光谱的峰值波长为⁴19 nm,其对应于Eu2+离子4 f65d→4 f7跃迁。

关键词(KeyWords)： β-Sialon;Eu2+;荧光粉;CRN;稀土

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(20671035/B0105)资助

作者(Authors): 丽丽;张骋;冯涛;徐海芳;李强;

参考文献(References)：

• [1]Nakamura S,Mukai T,Senoh M.Candela-class high-bright-ness InGaN/AIGaN double-heterostructure blue-light-emitting di-odes[J].Applied Physics Letters,1994,64(13):1687.
• [2]Nakamura S,Fasol G.The Blue Laser Diode:GaNBased LightEmitters and Lasers[M].Berlin:Springer-Verlag,1997.7.
• [3]Blasse G,Bril A.A new phosphor for flying-spot cathode-raytubes for color television yellow-emitting Y3Al5O12:Ce3+[J].Applied Physics Letters,1967,11(2):53.
• [4]方少明,马松涛,郭良起,张强,户敏,高丽君,周立明,王锐,刘春森.铕三元配合物-聚氨酯丙烯酸酯发光材料的合成与荧光性能研究[J].中国稀土学报,2010,28(2):154.Fang Shaoming,Ma Songtao,Guo Liangqi,Zhang Qiang,HuMin,Gao Lijun,Zhou Liming,Wang Rui,Liu Chunsen.Syn-thesis and fluorescence property of Eu3+ternary complex-polyure-thane acrylate photoluminescence material[J].Journal of RareEarths(in Chin.),2010,2(2):154.
• [5]Jabbarov R B,Chartier C,Tagiev B G,Tagiev O B,Musayeva NN,Barthou C,Benalloul P.Radiative properties of Eu2+inBaGa2S4[J].Journal of Physics and Chemistry of Solids,2005,66:1049.
• [6]Park J K,Lim MA,Kim C H,Park HD,Park J T,Choi S Y.White light-emitting diodes of GaN-based Sr2SiO4:Eu and the lu-minescent properties[J].Applied Physics Letters,2003,82(5):683.
• [7]Hide F,Kozodoy P,DenBaarsS P,Heeger A J.White lightfrom InGaN/conjugated polymer hybrid light-emitting diodes[J].Applied Physics Letters,1997,70(20):2664.
• [8]Lee TW,Park O O,Cho HN,Hong J M,Kim C Y,Kim Y C.White emission from a ternary polymer blend by incomplete cas-cade energy transfer[J].Synthetic Metals,2001,122:437.
• [9]Zhu X W,Masubuchi Y,Motohashi T,Kikkawa S.Thezvaluedependence of photoluminescence in Eu2+-dopedβ-Sialon(Si6-zAlzOzN8-z)with 1≤z≤4[J].Journal of Alloys andCompounds,2010,489:157.
• [10]Shioi Kousuke,Hirosaki Naoto,Xie Rongjun,Takeda Takashi,Li Yuanqiang.Luminescence properties of SrSi6N8:Eu2+[J].J.Mater.Sci.,2008,43:5659.
• [11]Oyama Y,Kamigaito.Solid solubility of some oxides in Si3N4[J].J.Appl.Phys.,1971,10:1637.
• [12]Jack K H.Solid solubility of alumina in silicon nitride[J].J.Brit.Ceram.Soc.,1973,72:376.
• [13]Popma TJ.The invention relates to a luminescent screen pro-vided with a luminescent nitride[P].European patent,EP0155047 A1,1985.
• [14]Ekstrom T,Kall P O,Nygren M,Olsson P O.Dense single-phaseβ-Sialon ceramics byglass-encapsulated hot isostatic press-ing[J].J.Mater.Sci.,1985,24(5):1853.
• [15]Li Q,Zhang C,Komeya K,Tatami J,Meguro T.Nano pow-ders ofβ-Sialon carbothermally produced via a sol-gel process[J].J.Mater.Sci.Lett.,2003,23:886.
• [16]Lee J G,Cutler I B.Sinterable SiAlON powder by reaction ofclay with carbon and nitrogen[J].Am.Ceram.Soc.Bull.,1979,58:869.
• [17]Jeong Ho Ryu,Hyong Sik Won,Young on Park,Sang HyunKim.Synthesis of EuxSi6-zAlzOzN8-zgreen phosphor and itsluminescent properties[J].Appl.Phys.A,2009,95:747.