湖南大学学报（自然科学版）
湖南大學學報（自然科學版）
호남대학학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY(NATURAL SCIENCES EDITION)
2010年
3期
66-68
,共3页
浓度%掺杂%Eu离子%TeO_2-BaO-Eu_2O_3玻璃
濃度%摻雜%Eu離子%TeO_2-BaO-Eu_2O_3玻璃
농도%참잡%Eu리자%TeO_2-BaO-Eu_2O_3파리
concentration%doped%Eu~(3+) ions%TeO_2-BaO glass
研究了TeO_2-BaO-Eu_2O_3玻璃中Eu离子掺杂浓度对其发光性质的影响.分别用TU - 1901 UV - VIS紫外可见光谱仪和F - 2500荧光光谱仪测量样品的吸收光谱和发射光谱与激发光谱.结果表明:所有的样品在330 nm左右有一个很强的吸收带;Eu - O电荷迁移带的强度与Eu离子掺杂浓度密切相关;相对于基质吸收,Eu离子的本征吸收强度随掺杂离子浓度的提高而增强;在394 nm光的激发下,Eu离子发光主要位于594 nm和615 nm左右,相对于~5D_ 0→ ~7F_1, ~5D_0→~7F_2跃迁发射受Eu离子掺杂浓度的影响.
研究瞭TeO_2-BaO-Eu_2O_3玻璃中Eu離子摻雜濃度對其髮光性質的影響.分彆用TU - 1901 UV - VIS紫外可見光譜儀和F - 2500熒光光譜儀測量樣品的吸收光譜和髮射光譜與激髮光譜.結果錶明:所有的樣品在330 nm左右有一箇很彊的吸收帶;Eu - O電荷遷移帶的彊度與Eu離子摻雜濃度密切相關;相對于基質吸收,Eu離子的本徵吸收彊度隨摻雜離子濃度的提高而增彊;在394 nm光的激髮下,Eu離子髮光主要位于594 nm和615 nm左右,相對于~5D_ 0→ ~7F_1, ~5D_0→~7F_2躍遷髮射受Eu離子摻雜濃度的影響.
연구료TeO_2-BaO-Eu_2O_3파리중Eu리자참잡농도대기발광성질적영향.분별용TU - 1901 UV - VIS자외가견광보의화F - 2500형광광보의측량양품적흡수광보화발사광보여격발광보.결과표명:소유적양품재330 nm좌우유일개흔강적흡수대;Eu - O전하천이대적강도여Eu리자참잡농도밀절상관;상대우기질흡수,Eu리자적본정흡수강도수참잡리자농도적제고이증강;재394 nm광적격발하,Eu리자발광주요위우594 nm화615 nm좌우,상대우~5D_ 0→ ~7F_1, ~5D_0→~7F_2약천발사수Eu리자참잡농도적영향.
The effect of Eu~(3+) ions concentration on the optical properties of TeO_2-BaO-Eu_2O_3 glass was studied. A strong absorption band at around 330 nm was observed in all the samples. The absorption intensity of the charge-transfer band was observed as a function of Eu~(3+) ions concentration. And the absorption intensity relative to that of the host increased with the increase of the Eu~(3+) ions concentration. The strong emission peaks lied in 594 and 615 nm under 394 nm excitation for all the samples. The emission intensity of ~5D_0→ ~7F_2 transition changed with Eu~(3+) ion concentration with respect to that of ~5D_0→ ~7F_1 transition.
