Synthesis and luminescent properties of novel silicon-based electroluminescent copolymers with ruthenium(II)-chelated complexes
SCIE
SCOPUS
- Title
- Synthesis and luminescent properties of novel silicon-based electroluminescent copolymers with ruthenium(II)-chelated complexes
- Authors
- Baea, NS; Kim, HK; Hwang, GT; Kim, BH
- Date Issued
- 2001-01
- Publisher
- TAYLOR & FRANCIS LTD
- Abstract
- A new class of silicon-based alternating copolymers having Ruthenium(II)-chelated complexes was synthesized to use as electroluminescent materials by Heck reaction between organosilicon divinyl monomers and Ru(ED-chelated monomers. The incorporation of organosilicon units with the aromatic or aliphatic groups on the silicon atoms into pi -conjugated systems improved their processability and interrupted the pi -conjugation length. The maximum absorption wavelength (lambda (max)) of a non-chelated polymer (SiHMPhen) containing a phenanthroline (Phen) unit exhibited one strong bands at 305 nm for Phen units and a moderate peak around 350 mn for pi -conjugated backbones. With an excitation wavelength of 360 nm, the PL spectrum of SiHMPhen exhibits a strong band at 420 mn in the blue region. Ru(II)-chelated copolymers showed strong absorption bands around 386 similar to 392 nm. Upon a photoexcitation with 400 nm, their PL spectra show a strong band at 430 nm in the blue region. The Ru(II)-chelated copolymers were thermally stable up to 300 degreesC in air.
- Keywords
- electroluminescence; silicon-based copolymers; Heck reaction; metal-to-ligand charge transfer; ruthenium(II)-chelated complexes
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19272
- DOI
- 10.1080/10587250108030112
- ISSN
- 1058-725X
- Article Type
- Article
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol. 370, page. 387 - 390, 2001-01
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