The DOI matches its Crossref record; 62 of the 62 references it cites were found in a registry or an index.
Recent Progress of Highly Efficient Red and Near‐Infrared Thermally Activated Delayed Fluorescent Emitters
Abstract
Organic emitters have been widely developed since the demonstration of high efficiency in pure organic emitters represented by thermally activated delayed fluorescent (TADF) emitters. Pure organic‐based TADF emitters are found to harvest all singlet and triplet excitons for radiative transition processes, like phosphorescent emitters that utilize all generated excitons for light emission by strong spin–orbit coupling. Red, green, and blue organic emitters are investigated, but major interest is focused on green and blue organic emitters. However, recent studies are being directed to red and even near‐infrared emitters because of their wide applications in bioimaging, sensors, telecommunications, and night vision. Although the external quantum efficiency of the red and near‐infrared TADF organic light‐emitting diodes (OLEDs) is low, the external quantum efficiency of red OLEDs has been advanced to close to 30% and that of near‐infrared OLEDs to the 10% level. Therefore, more attention is being paid to red and near‐infrared TADF emitters. In this work, recent progress of the red and near‐infrared TADF emitters is reviewed to understand the molecular design principle and the molecular structure–photophysical characteristics and molecular structure–device performance relationships. In addition, future prospect of the red and near‐infrared TADF emitters is proposed.
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A Brief History of OLEDs—Emitter Development and Industry Milestones
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Recent progress of narrowband TADF emitters and their applications in OLEDs
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Metadata
- Authors
- Kim, J. H., Yun, J. H., & Lee, J. Y.
- Affiliations
- Sungkyunkwan University (KR)
- Corresponding author
- Lee, Jun Yeob
- ORCID
- Lee, Jun Yeob
- Venue
- Advanced Optical Materials
- Publisher
- Wiley
- Published
- 2018-06-27
- Volume
- 6
- Issue
- 18
- ISSN
- 2195-1071 (ISSN-L)
- OpenAlex
- W2811452226
- Cited by
- 314
- References
- 62
- Citations by year
- 2026: 11 · 2025: 30 · 2024: 32 · 2023: 44 · 2022: 52 · 2021: 61 · 2020: 47 · 2019: 34 · 2018: 3
- FWCI
- 13.87
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Optical Materials (publishedVersion)
- Funders
- National Research Foundation of Korea
- Ministry of Science, ICT and Future Planning (2016R1A2B3008845)
- Ministry of Trade, Industry and Energy
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
- Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
- Physical Sciences › Materials Science › Materials Chemistry › Luminescence Properties of Advanced Materials
- Keywords
- thermally activated delayed fluorescence, red emitters, near-infrared emitters, organic light-emitting diodes, external quantum efficiency, molecular design, bioimaging
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