The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Pyrene-substituted ethenes: aggregation-enhanced excimer emission and highly efficient electroluminescence
Abstract
Pyrene-substituted ethenes, 1,2,2-tripheny-1-pyrenylethene (TPPyE) and 1,2-diphenyl-1,2-dipyrenylethene (DPDPyE), are synthesized and characterized. Whereas they are weakly emissive in solution they become strong emitters when aggregated in the condensed phase. In contrast to the general observation that excimer formation quenches the light emission of fluorophores, TPPyE and DPDPyE exhibit efficient excimer emissions in the solid state with high fluorescence quantum yields up to 100%. The π–π intermolecular interactions between the pyrene rings, coupled with multiple C–H⋯π hydrogen bonds, efficiently restrict intramolecular rotations, which block the nonradiative energy decay channel, and hence make the dye molecules highly emissive in the solid state. Non-doped organic light-emitting diodes using TPPyE and DPDPyE as emitters are fabricated, which give green light at low turn-on voltages (down to 3.2 V) with maximum luminance and power, current, and external quantum efficiencies of 49830 cd m−2, 9.2 lm W−1, 10.2 cd A−1 and 3.3%, respectively.
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Citations
Cites
Aggregation-induced emission of 1-methyl-1,2,3,4,5-pentaphenylsilole
Luo, J., Xie, Z., Lam, J. W. Y., Cheng, L., Tang, B. Z., Chen, H., Qiu, C., Kwok, H. S., Zhan, X., Liu, Y., et al. (2001) · Chemical Communications · doi:10.1039/b105159h · Cited by 8,358
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Cited by
Zhao, Z., Lam, J. W. Y., & Tang, B. Z. (2012) · Journal of Materials Chemistry · doi:10.1039/c2jm31949g · Cited by 867
Self-citationAggregation-induced emission of siloles
Zhao, Z., He, B., & Tang, B. Z. (2015) · Chemical Science · doi:10.1039/c5sc01946j · Cited by 600
Self-citationWang, J., Mei, J., Hu, R., Sun, J. Z., Qin, A., & Tang, B. Z. (2012) · Journal of the American Chemical Society · doi:10.1021/ja208883h · Cited by 593
Self-citationFeng, X., Wang, X., Redshaw, C., & Tang, B. Z. (2023) · Chemical Society Reviews · doi:10.1039/d3cs00251a · Cited by 382
Self-citationZhao, Q., Zhang, X. A., Wei, Q., Wang, J., Shen, X. Y., Qin, A., Sun, J. Z., & Tang, B. Z. (2012) · Chemical Communications · doi:10.1039/c2cc36060h · Cited by 84
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Metadata
- Authors
- Zhao, Z., Chen, S., Lam, J. W. Y., Wang, Z., Lu, P., Mahtab, F., Sung, H. H. Y., Williams, I. D., Ma, Y., Kwok, H. S., & Tang, B. Z.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2011
- Volume
- 21
- Issue
- 20
- Pages
- 7210
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2094298603
- Cited by
- 226
- References
- 1
- FWCI
- 9.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhao, Z., Chen, S., Lam, J. W. Y., Wang, Z., Lu, P., Mahtab, F., Sung, H. H. Y., Williams, I. D., Ma, Y., Kwok, H. S., & Tang, B. Z. (2011). Pyrene-substituted ethenes: aggregation-enhanced excimer emission and highly efficient electroluminescence. Journal of Materials Chemistry. https://doi.org/10.1039/c0jm04449k
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