SUCRA(さくら: Saitama University Cyber Repository of Academic Resources)は、埼玉大学に在籍する研究者の学術雑誌論文、紀要論文、科学研究費補助金成果報告書、学位論文、研究発表プレゼン資料などを登録し、広く世界に発信しています。 埼玉大学に在籍する皆様は、著作物をSUCRAを通じて発信することができます。詳しくは「成果物の登録方法」をご覧ください。
Department of Functional Materials Science, Faculty of Engineering, Saitama University
Department of Functional Materials Science, Faculty of Engineering, Saitama University
Department of Functional Materials Science, Faculty of Engineering, Saitama University
Department of Functional Materials Science, Faculty of Engineering, Saitama University
雑誌名
埼玉大学工学部紀要 第一部 論文集
巻
44
ページ
11 - 15
発行年
2013
年月次
2010
出版者名
埼玉大学工学部広報委員会
ISSN
18804446
抄録
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.
溶媒中熱処理によるEu錯体の光劣化特性の改善＜論文＞
KY-AN00095842-44-05.pdf
(819KB)
SUCRAの概要
