The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
Molecular‐Structure and Device‐Configuration Optimizations toward Highly Efficient Green Electroluminescence with Narrowband Emission and High Color Purity
Abstract
Thermally activated delayed fluorescence (TADF) materials that are able to realize electroluminescence showing simultaneously narrow emission band, high color purity, and high efficiency are highly demanded for display applications. Up to now, a few blue emissive TADF materials with such characteristics have been reported, while green TADF materials with such features are extremely scarce. Herein, two TADF compounds with highly efficient narrowband bluish green/green emission (full‐width at half‐maximum (FWHM): 22 and 21 nm in toluene) induced by multiple resonance effect are reported. An optimized organic light‐emitting diode based on the green emissive compound shows a fairly narrow electroluminescent spectrum (FWHM: 33 nm), as well as an excellent color purity with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.20, 0.65), which is a close resemblance to the standard green‐light CIE coordinates of (0.21, 0.71) defined by the National Television System Committee. Meanwhile, the maximum external quantum efficiency (EQE) up to 25.5% is achieved and a high EQE of 20.1% is maintained at a practical high luminance of 1000 cd m−2. The outstanding device performance of the compound makes it attractive for potential practical applications.
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Cites
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Highly efficient organic light-emitting diodes from delayed fluorescence
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Recent advances in organic thermally activated delayed fluorescence materials
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Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes
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Thermally Activated Delayed Fluorescence Materials Towards the Breakthrough of Organoelectronics
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Metadata
- Authors
- Xu, Y., Cheng, Z., Li, Z., Liang, B., Wang, J., Wei, J., Zhang, Z., & Wang, Y.
- Venue
- Advanced Optical Materials
- Publisher
- Wiley
- Published
- 2020-03-05
- Volume
- 8
- Issue
- 9
- ISSN
- 2195-1071 (ISSN-L)
- OpenAlex
- W3010200388
- Cited by
- 513
- References
- 43
- FWCI
- 17.64
- Type
- journal article
- Language
- en
- Open access
- closed
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