Temperature effect on photoluminescent properties of red light-emitting materials based on Ru(II)-chelated complexes
SCIE
SCOPUS
- Title
- Temperature effect on photoluminescent properties of red light-emitting materials based on Ru(II)-chelated complexes
- Authors
- Baek, NS; Kim, HK; Lee, Y; Kang, JG; Kim, TJ; Hwang, GT; Kim, BH
- Date Issued
- 2002-09-30
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- A new class of silicon-based copolymers containing Ru(II)-chelated complexes for new red light-emitting materials was developed by well-known Heck reaction between distyrylsilane monomer and the difunctionalized metal-chelated complexes. Ru(II)-chelated copolymers I and II showed one strong band approximately 265-289 nm for ligand units, one strong absorption band approximately 386-392 nm for pi-conjugated backbones, and a broad shoulder metal-to-ligand charge transfer band approximately 460-465 nm. Ru(II)-chelated polymers exhibited a negligibly broad band approximately 495-500 nm in the greenish blue region and one/or two strong bands in the red region at room temperature. The photoluminescent (PL) properties of all materials as a function of temperatures were also investigated. With a photoexcitation wavelength of 325 nm at various temperatures, their PL intensity approximately 673-675 nm increased gradually with decreasing temperature, due to the restraint of the thermal relaxation decay. (C) 2002 Elsevier Science B.V. All rights reserved.
- Keywords
- electroluminescence; silicon-based copolymers; metal-chelated complex; metal-to-ligand charge transfer; TUNABLE ELECTROLUMINESCENCE; ALTERNATING COPOLYMERS; EMISSION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18865
- DOI
- 10.1016/S0040-6090(02)00585-0
- ISSN
- 0040-6090
- Article Type
- Article
- Citation
- THIN SOLID FILMS, vol. 417, no. 1-2, page. 111 - 115, 2002-09-30
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.