The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
New Molecular Design Concurrently Providing Superior Pure Blue, Thermally Activated Delayed Fluorescence and Optical Out-Coupling Efficiencies
Open accessAbstract
Abstract Simultaneous enhancement of out-coupling efficiency, internal quantum efficiency, and color purity in thermally activated delayed fluorescence (TADF) emitters is highly desired for the practical application of these materials. We designed and synthesized two isomeric TADF emitters, 2DPyM-mDTC and 3DPyM-pDTC, based on di(pyridinyl)methanone (DPyM) cores as the new electron-accepting units and di(tert-butyl)carbazole (DTC) as the electron-donating units. 3DPyM-pDTC, which is structurally nearly planar with a very small ΔEST, shows higher color purity, horizontal ratio, and quantum yield than 2DPyM-mDTC, which has a more flexible structure. An electroluminescence device based on 3DPyM-pDTC as the dopant emitter can reach an extremely high external quantum efficiency of 31.9% with a pure blue emission. This work also demonstrates a way to design materials with a high portion of horizontal molecular orientation to realize a highly efficient pure-blue device based on TADF emitters.
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Cites
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
Cited by
Narrowband deep-blue organic light-emitting diode featuring an organoboron-based emitter
Kondo, Y., Yoshiura, K., Kitera, S., Nishi, H., Oda, S., Gotoh, H., Sasada, Y., Yanai, M., & Hatakeyama, T. (2019) · Nature Photonics · doi:10.1038/s41566-019-0476-5 · Cited by 1,545
Wu, T.-L., Huang, M.-J., Lin, C.-C., Huang, P.-Y., Chou, T.-Y., Chen-Cheng, R.-W., Lin, H.-W., Liu, R.-S., & Cheng, C.-H. (2018) · Nature Photonics · doi:10.1038/s41566-018-0112-9 · Cited by 819
Self-citationLiang, X., Yan, Z., Han, H., Wu, Z., Zheng, Y., Meng, H., Zuo, J., & Huang, W. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201806323 · Cited by 426
Yuan, Y., Tang, X., Du, X., Hu, Y., Yu, Y., Jiang, Z., Liao, L., & Lee, S. (2019) · Advanced Optical Materials · doi:10.1002/adom.201801536 · Cited by 404
The theory of thermally activated delayed fluorescence for organic light emitting diodes
Penfold, T. J., Dias, F. B., & Monkman, A. P. (2018) · Chemical Communications · doi:10.1039/c7cc09612g · Cited by 341
Metadata
- Authors
- Rajamalli, P., Senthilkumar, N., Huang, P.-Y., Ren-Wu, C.-C., Lin, H.-W., & Cheng, C.-H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-08-02
- Volume
- 139
- Issue
- 32
- Pages
- 10948-10951
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2739210302
- Cited by
- 418
- References
- 1
- FWCI
- 22.49
- Type
- journal article
- Language
- en
- Open access
- hybrid
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