摘要
Porous alumina covered with europium doped silica sol gel film exhibited strong Eu 2+ related photoluminescence at 396 nm at room temperature( λ ex =310 nm). The intensity of the photoluminescence can be increased by using porous matrix, thicker gel film and lower annealed temperature due to more photoactive species on the surface. Ag particles can improve the photoluminescence by affecting the surrounding electron field of Eu 2+ .
Porous alumina covered with europium doped silica sol gel film exhibited strong Eu 2+ related photoluminescence at 396 nm at room temperature( λ ex =310 nm). The intensity of the photoluminescence can be increased by using porous matrix, thicker gel film and lower annealed temperature due to more photoactive species on the surface. Ag particles can improve the photoluminescence by affecting the surrounding electron field of Eu 2+ .
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第5期821-823,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金!重大项目 (批准号 :69890 2 2 0 )资助
