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Novel red-emitting fluorene-based copolymers
Abstract
A series of novel soluble conjugated copolymers derived from 9,9-dioctylfluorene (DOF) and 4,7-di-2-thienyl-2,1,3-benzothiadiazole (DBT) were synthesized by a palladium-catalyzed Suzuki coupling reaction with different feed ratios of DOF to DBT. Owing to exciton confinement on the DBT site, exciton emission is centred on the DBT chromophore and gives rise to saturated red emission. Polyfluorene fluorescence is quenched completely at DBT concentrations as low as 1% in the solid film. Devices based on these copolymers emit a saturated red light. Chromaticity coordinates are around x = 0.70, y = 0.30 for the copolymers. The emission peaks are shifted from 628 nm to 674 nm when DBT content increases from 1 to 35%. The highest quantum efficiency achieved with device configuration of ITO/PEDT/PFO-DBT/Ba/Al was 1.4% for the copolymer with 15% DBT content.
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Cited by
Electron Transport Materials for Organic Light-Emitting Diodes
Kulkarni, A. P., Tonzola, C. J., Babel, A., & Jenekhe, S. A. (2004) · Chemistry of Materials · doi:10.1021/cm049473l · Cited by 1,624
Designing π-conjugated polymers for organic electronics
Guo, X., Baumgarten, M., & Müllen, K. (2013) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2013.09.005 · Cited by 836
Novel Electroluminescent Conjugated Polyelectrolytes Based on Polyfluorene
Huang, F., Wu, H., Wang, D., Yang, W., & Cao, Y. (2004) · Chemistry of Materials · doi:10.1021/cm034650o · Cited by 632
Self-citationHigh-performance polymer heterojunction solar cells of a polysilafluorene derivative
Wang, E., Wang, L., Lan, L., Luo, C., Zhuang, W., Peng, J., & Cao, Y. (2008) · Applied Physics Letters · doi:10.1063/1.2836266 · Cited by 490
Self-citationZhang, M., Guo, X., Wang, X., Wang, H., & Li, Y. (2011) · Chemistry of Materials · doi:10.1021/cm2019586 · Cited by 194
Metadata
- Authors
- Hou, Q., Xu, Y., Yang, W., Yuan, M., Peng, J., & Cao, Y.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2002-08-13
- Volume
- 12
- Issue
- 10
- Pages
- 2887-2892
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2057030286
- Cited by
- 334
- References
- 0
- FWCI
- 13.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hou, Q., Xu, Y., Yang, W., Yuan, M., Peng, J., & Cao, Y. (2002). Novel red-emitting fluorene-based copolymers. Journal of Materials Chemistry. https://doi.org/10.1039/b203862e
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