@article{oai:sucra.repo.nii.ac.jp:00013422,
 author = {Kin, Eimo and 福田, 武司 and Kato,  Sayaka and 本多, 善太郎 and 鎌田, 憲彦},
 issue = {3},
 journal = {JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY},
 month = {},
 note = {In order to improve the stability of red phosphor with efficient and high color-purity characteristics under ultraviolet excitation, we encapsulated Eu(TTA)(3)phen(tris(2-thenoyltrifluoroacetonato)(1,10-phenanthroline)europium(III)) by sol-gel derived silica glasses and studied their photoluminescence (PL) characteristics. The dependence of pH values in the starting solution revealed that the process condition should be within the modest region with the optimum pH value around 6-7. The PL intensity increased with increasing the concentration of Eu(TTA)(3)phen initially, then it showed saturating tendency above 0.6 mol%. An improvement of reliability by the glass encapsulation was exemplified by monitoring the long-term PL intensity under constant UV irradiation. We consider that the glass network carefully prepared by sol-gel process is effective for preventing free oxygen and water from attacking Eu(TTA)(3)phen molecule without loss of PL output., text, application/pdf},
 pages = {409--414},
 title = {pH and concentration dependence of luminescent characteristics in glass-encapsulated Eu-complex},
 volume = {50},
 year = {2009},
 yomi = {フクダ, タケシ and ホンダ, ゼンタロウ and カマタ, ノリヒコ}
}