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Above 30% External Quantum Efficiency in Green Delayed Fluorescent Organic Light-Emitting Diodes
Abstract
Highly efficient green thermally activated delayed fluorescent organic light-emitting diodes with an external quantum efficiency of 31.2% were investigated by using 3-(3-(carbazole-9-yl)phenyl) pyrido[3',2':4,5]furo[2,3-b]pyridine (3CzPFP) derived from carbazole and pyrido[3',2':4,5]furo[2,3-b]pyridine. The host material showed well-matched photoluminescence emission with absorption of the green dopant material, (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl)isophthalonitrile (4CzIPN) and harvested all excitons of 4CzIPN. The 3CzPFP:4CzIPN film exhibited high photoluminescence quantum yield of 100%, and the green delayed fluorescence device employing the 3CzPFP host showed high maximum quantum efficiency of 31.2 ± 0.5% at 1% doping after optimization of the device structure.
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Cited by
Recent advances in organic thermally activated delayed fluorescence materials
Yang, Z., Mao, Z., Xie, Z., Zhang, Y., Liu, S., Zhao, J., Xu, J., Chi, Z., & Aldred, M. P. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00368k · Cited by 2,395
Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes
Wong, M. Y., & Zysman‐Colman, E. (2017) · Advanced Materials · doi:10.1002/adma.201605444 · Cited by 2,050
All-organic thermally activated delayed fluorescence materials for organic light-emitting diodes
Liu, Y., Li, C., Ren, Z., Yan, S., & Bryce, M. R. (2018) · Nature Reviews Materials · doi:10.1038/natrevmats.2018.20 · Cited by 1,644
Zeng, W., Lai, H., Lee, W., Jiao, M., Shiu, Y., Zhong, C., Gong, S., Zhou, T., Xie, G., Sarma, M., et al. (2018) · Advanced Materials · doi:10.1002/adma.201704961 · Cited by 615
Zhang, Y., Ran, Q., Wang, Q., Liu, Y., Hänisch, C., Reineke, S., Fan, J., & Liao, L. (2019) · Advanced Materials · doi:10.1002/adma.201902368 · Cited by 320
Metadata
- Authors
- Lee, D. R., Kim, B. S., Lee, C. W., Im, Y., Yook, K. S., Hwang, S.-H., & Lee, J. Y.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-04-29
- Volume
- 7
- Issue
- 18
- Pages
- 9625-9629
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2071235159
- Cited by
- 245
- References
- 0
- FWCI
- 15.08
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lee, D. R., Kim, B. S., Lee, C. W., Im, Y., Yook, K. S., Hwang, S.-H., & Lee, J. Y. (2015). Above 30% External Quantum Efficiency in Green Delayed Fluorescent Organic Light-Emitting Diodes. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.5b01220
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