溶剂热合成纳米球状La_2O_2S:Eu^(3+)荧光粉  

Solvothermal Synthesis of Nano-sphere-like La_2O_2S∶Eu^(3+) Phosphor

作　　者：邝金勇[1] 刘应亮[1] 张静娴[1] 袁定胜[1] 

机构地区：[1]暨南大学化学系,广州510632

出　　处：《高等学校化学学报》2005年第5期822-824,F012,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20171018;50472077);广东省自然科学科学基金(批准号:013201;36706)资助.

摘　　要：Nano-sphere-like Eu3+ activated lanthanum oxysulfide phosphor was first synthesized directly by solvothermal method. The phosphor was characterized by XRD, TEM and PL. Photoluminescence spectra indicate that this phosphor showed three typical transitions of Eu3+（（）5D0→（）7F1, （）5D0→（）7F2, （（）5D0→（）7F4）.） In comparison with those prepared by high temperature solid state method, photoluminescence spectrum of Eu3+（（）5D0→（）7F2）-doped nano-La2O2S∶Eu3+ phosphor became broader. And the reaction mechanism was also mentioned in this paper.Nano-sphere-like Eu^(3+) activated lanthanum oxysulfide phosphor was first synthesized directly by solvothermal method. The phosphor was characterized by XRD, TEM and PL. Photoluminescence spectra indicate that this phosphor showed three typical transitions of Eu^(3+)(()~5D_0→()~7F^1, ()~5D_0→()~7F_2, (()~5D_0→()~7F_4).) In comparison with those prepared by high temperature solid state method, photoluminescence spectrum of Eu^(3+)(()~5D_0→()~7F_2)-doped nano-La_2O_2S∶Eu^(3+) phosphor became broader. And the reaction mechanism was also mentioned in this paper.

关 键 词：溶剂热合成 硫氧化镧 铕离子 反应机理 

分 类 号：O614[理学—无机化学]