The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Steric Modulation of Spiro Structure for Highly Efficient Multiple Resonance Emitters
Abstract
A multiple resonance thermally activated delayed fluorescence (MR‐TADF) molecule with a fused, planar architecture tends to aggregate at high doping ratios, resulting in broad full width at half maximum (FWHM), redshifting electroluminescence peaks, and low device efficiency. Herein, we propose a mono‐substituted design strategy by introducing spiro‐9,9′‐bifluorene (SBF) units with different substituted sites into the MR‐TADF system for the first time. As a classic steric group,SBF can hinder interchromophore interactions, leading to high device efficiency (32.2–35.9 %) and narrow‐band emission (≈27 nm). Particularly, the shield‐like molecule,SF1BN, seldom exhibits a broadened FWHM as the doping ratio rises, which differs from the C3‐substituted isomer and unhindered parent emitter. These results manifest an effective method for constructing highly efficient MR‐TADF emitters through a spiro strategy and elucidate the feasibility for steric modulation of the spiro structure in π‐framework.
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Cites
Long-range corrected hybrid density functionals with damped atom–atom dispersion corrections
Chai, J.-D., & Head-Gordon, M. (2008) · Physical Chemistry Chemical Physics · doi:10.1039/b810189b · Cited by 14,648
Aggregation-Induced Emission: Together We Shine, United We Soar!
Mei, J., Leung, N. L. C., Kwok, R. T. K., Lam, J. W. Y., & Tang, B. Z. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00263 · Cited by 8,270
Cited by
Mamada, M., Hayakawa, M., Ochi, J., & Hatakeyama, T. (2024) · Chemical Society Reviews · doi:10.1039/d3cs00837a · Cited by 482
Wu, X., Ni, S., Wang, C.-H., Zhu, W., & Chou, P.-T. (2025) · Chemical Reviews · doi:10.1021/acs.chemrev.5c00021 · Cited by 325
Metadata
- Authors
- Qu, Y., Zhou, D., Kong, F., Zheng, Q., Tang, X., Zhu, Y., Huang, C., Feng, Z., Fan, J., Adachi, C., Liao, L., & Jiang, Z.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2022-03-30
- Volume
- 61
- Issue
- 22
- Pages
- e202201886-e202201886
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W4220746488
- Cited by
- 217
- References
- 2
- FWCI
- 12.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Qu, Y., Zhou, D., Kong, F., Zheng, Q., Tang, X., Zhu, Y., Huang, C., Feng, Z., Fan, J., Adachi, C., Liao, L., & Jiang, Z. (2022). Steric Modulation of Spiro Structure for Highly Efficient Multiple Resonance Emitters. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202201886
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