@article{oai:sucra.repo.nii.ac.jp:00016450, author = {秋山, 真之介 and 福田, 武司 and 本多, 善太郎 and 鎌田, 憲彦}, journal = {埼玉大学工学部紀要 第一部 論文集}, month = {}, note = {From viewpoints of the energy-saving and the long term stability, white light-emitting diodes (LEDs) have been demanded. Recently, Eu-complexes are examined to improve the color rendering index of white LEDs. Since Eu-complex generates the bright red emission by the ultraviolet (UV) light irradiation, the color rendering index of white LEDs can be improved by mixing several kinds of phosphors. However, one of the most important problems of Eu-complex is the change of molecular structure by the UV light irradiation. Therefore, the photoluminescence (PL) intensity is reduced by irradiating the UV light. In this paper we successfully improved the optical degradation characteristics of Eu-complex by the thermal treatment in the organic solvent. In addition, the PL quantum yield was also increased compared to the normal Eu-complex. These results indicate the long term stability will be improved in a near future by optimizing the annealing condition and encapsulating an inorganic layer around Eu-complex., text, application/pdf}, pages = {11--15}, title = {溶媒中熱処理によるEu錯体の光劣化特性の改善<論文>}, volume = {44}, year = {2013}, yomi = {アキヤマ, シンノスケ and フクダ, タケシ and ホンダ, ゼンタロウ and カマタ, ノリヒコ} }