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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-398 |
| Subject |
White light-emitting colloids and films containing organic sensitizer/LRH:RE nanosheets |
| Authors |
Hong-Gu Jeon, Song-ho Byeon *
Department of Applied Chemistry, Kyung Hee University, Korea
|
| Abstract |
White light-emitting hybrid colloids and composite films based on efficient energy-transfer between Tb3+ and Eu3+ and organic sensitizer in the layered rare-earth hydroxides (LRHs) were successfully designed and assembled. Considering that flexible luminescent materials have attracted an extensive interest due to their applicability in optoelectronic devices, novel transparent white-emitting nano-composite films have been fabricated by using biocompatible polyvinyl alcohol (PVA). Salicylate (sal) was selected as an organic sensitizer to harvest UV-light. Eu3+-doped layered terbium hydroxide (LTbH:Eu), Tb3+-doped layered yttrium hydroxide (LYH:Tb), and layered yttrium hydroxide (LYH) were selected as host matrices for red, green, and blue light emitting hybrid materials, respectively. White light emission was readily achieved by simple mixing of resulting sal-LTbH:Eu, sal-LYH:Tb, and sal-LYH colloids with appropriate ratios. Highly increased photostability of salicylate in the interlayer space of LRH provides both colloids and composite films high performance durable for long period under UV irradiation. |
| E-mail |
jjmh103@hanmail.net |
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123rd General Meeting of the KCS