Recent Progress of Highly Efficient Red and Near‐Infrared Thermally Activated Delayed Fluorescent Emitters

Highly efficient organic light-emitting diodes from delayed fluorescence

Uoyama, H., Goushi, K., Shizu, K., Nomura, H., & Adachi, C. (2012) · Nature · doi:10.1038/nature11687 · Cited by 8,219

Very high-efficiency green organic light-emitting devices based on electrophosphorescence

Baldo, M. A., Lamansky, S., Burrows, P. E., Thompson, M. E., & Forrest, S. R. (1999) · Applied Physics Letters · doi:10.1063/1.124258 · Cited by 2,868

Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence

Zhang, Q., Li, B., Huang, S., Nomura, H., Tanaka, H., & Adachi, C. (2014) · Nature Photonics · doi:10.1038/nphoton.2014.12 · Cited by 2,443

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

Thermally Activated Delayed Fluorescence Materials Towards the Breakthrough of Organoelectronics

Tao, Y., Yuan, K., Chen, T., Xu, P., Li, H., Chen, R., Zheng, C., Zhang, L., & Huang, W. (2014) · Advanced Materials · doi:10.1002/adma.201402532 · Cited by 2,011

Spin—Orbit Coupling and the Radiationless Processes in Nitrogen Heterocyclics

El‐Sayed, M. A. (1963) · The Journal of Chemical Physics · doi:10.1063/1.1733610 · Cited by 1,544

Highly efficient blue electroluminescence based on thermally activated delayed fluorescence

Hirata, S., Sakai, Y., Masui, K., Tanaka, H., Lee, S. Y., Nomura, H., Nakamura, N., Yasumatsu, M., Nakanotani, H., Zhang, Q., et al. (2014) · Nature Materials · doi:10.1038/nmat4154 · Cited by 1,328

Efficient up-conversion of triplet excitons into a singlet state and its application for organic light emitting diodes

Endo, A., Sato, K., Yoshimura, K., Kai, T., Kawada, A., Miyazaki, H., & Adachi, C. (2011) · Applied Physics Letters · doi:10.1063/1.3558906 · Cited by 1,213

Molecular Design Strategy of Organic Thermally Activated Delayed Fluorescence Emitters

Im, Y., Kim, M., Cho, Y. J., Seo, J., Yook, K. S., & Lee, J. Y. (2017) · Chemistry of Materials · doi:10.1021/acs.chemmater.6b05324 · Cited by 1,061

Anthraquinone-Based Intramolecular Charge-Transfer Compounds: Computational Molecular Design, Thermally Activated Delayed Fluorescence, and Highly Efficient Red Electroluminescence

Zhang, Q., Kuwabara, H., Potscavage, W. J., Huang, S., Hatae, Y., Shibata, T., & Adachi, C. (2014) · Journal of the American Chemical Society · doi:10.1021/ja510144h · Cited by 993

A Twisting Donor‐Acceptor Molecule with an Intercrossed Excited State for Highly Efficient, Deep‐Blue Electroluminescence

Li, W., Liu, D., Shen, F., Ma, D., Wang, Z., Feng, T., Xu, Y., Yang, B., & Ma, Y. (2012) · Advanced Functional Materials · doi:10.1002/adfm.201200116 · Cited by 836

Near‐Infrared Organic Compounds and Emerging Applications

Qian, G., & Wang, Z. Y. (2010) · Chemistry - An Asian Journal · doi:10.1002/asia.200900596 · Cited by 779

100% phosphorescence quantum efficiency of Ir(III) complexes in organic semiconductor films

Kawamura, Y., Goushi, K., Brooks, J. J., Brown, J. J., Sasabe, H., & Adachi, C. (2005) · Applied Physics Letters · doi:10.1063/1.1862777 · Cited by 737

Efficient green thermally activated delayed fluorescence (TADF) from a phenoxazine–triphenyltriazine (PXZ–TRZ) derivative

Tanaka, H., Shizu, K., Miyazaki, H., & Adachi, C. (2012) · Chemical Communications · doi:10.1039/c2cc36237f · Cited by 654

Biocompatible Nanoparticles with Aggregation‐Induced Emission Characteristics as Far‐Red/Near‐Infrared Fluorescent Bioprobes for In Vitro and In Vivo Imaging Applications

Qin, W., Ding, D., Liu, J., Yuan, W. Z., Hu, Y., Liu, B., & Tang, B. Z. (2011) · Advanced Functional Materials · doi:10.1002/adfm.201102191 · Cited by 647

Achieving Nearly 30% External Quantum Efficiency for Orange–Red Organic Light Emitting Diodes by Employing Thermally Activated Delayed Fluorescence Emitters Composed of 1,8‐Naphthalimide‐Acridine Hybrids

Zeng, W., Lai, H., Lee, W., Jiao, M., Shiu, Y., Zhong, C., Gong, S., Zhou, T., Xie, G., Sarma, M., et al. (2017) · Advanced Materials · doi:10.1002/adma.201704961 · Cited by 620

Highly Efficient Near‐Infrared Delayed Fluorescence Organic Light Emitting Diodes Using a Phenanthrene‐Based Charge‐Transfer Compound

Wang, S., Yan, X., Cheng, Z., Zhang, H., Liu, Y., & Wang, Y. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201506687 · Cited by 607

High-efficiency electroluminescence and amplified spontaneous emission from a thermally activated delayed fluorescent near-infrared emitter

Kim, D.-H., D’Aléo, A., Chen, X., Sandanayaka, A. S. D., Yao, D., Zhao, L., Komino, T., Zaborova, E., Canard, G., Tsuchiya, Y., et al. (2018) · Nature Photonics · doi:10.1038/s41566-017-0087-y · Cited by 554

Sterically shielded blue thermally activated delayed fluorescence emitters with improved efficiency and stability

Zhang, D., Cai, M., Zhang, Y., Zhang, D., & Duan, L. (2016) · Materials Horizons · doi:10.1039/c5mh00258c · Cited by 552

Novel Thermally Activated Delayed Fluorescence Materials–Thioxanthone Derivatives and Their Applications for Highly Efficient OLEDs

Wang, H., Xie, L., Peng, Q., Meng, L., Wang, Y., Yi, Y., & Wang, P. (2014) · Advanced Materials · doi:10.1002/adma.201401393 · Cited by 544

The Role of Local Triplet Excited States and D‐A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices

Dias, F. B., Santos, J., Graves, D. R., Data, P., Nobuyasu, R. S., Fox, M. A., Batsanov, A. S., Palmeira, T., Berberan-Santos, M. N., Bryce, M. R., et al. (2016) · Advanced Science · doi:10.1002/advs.201600080 · Cited by 526

Highly Efficient Organic Light‐Emitting Diode Based on a Hidden Thermally Activated Delayed Fluorescence Channel in a Heptazine Derivative

Li, J., Nakagawa, T., MacDonald, J., Zhang, Q., Nomura, H., Miyazaki, H., & Adachi, C. (2013) · Advanced Materials · doi:10.1002/adma.201300575 · Cited by 500

Thermally activated delayed fluorescent phenothiazine–dibenzo[a,j]phenazine–phenothiazine triads exhibiting tricolor-changing mechanochromic luminescence

Okazaki, M., Takeda, Y., Data, P., Pander, P., Higginbotham, H. F., Monkman, A. P., & Minakata, S. (2017) · Chemical Science · doi:10.1039/c6sc04863c · Cited by 441

Stable Blue Thermally Activated Delayed Fluorescent Organic Light‐Emitting Diodes with Three Times Longer Lifetime than Phosphorescent Organic Light‐Emitting Diodes

Kim, M., Jeon, S. K., Hwang, S., & Lee, J. Y. (2015) · Advanced Materials · doi:10.1002/adma.201500267 · Cited by 404

New Iridium Complexes as Highly Efficient Orange–Red Emitters in Organic Light‐Emitting Diodes

Duan, J. ‐., Sun, P. P., & Cheng, C. (2003) · Advanced Materials · doi:10.1002/adma.200390051 · Cited by 388

Dibenzo[ a,j ]phenazine‐Cored Donor–Acceptor–Donor Compounds as Green‐to‐Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters

Data, P., Pander, P., Okazaki, M., Takeda, Y., Minakata, S., & Monkman, A. P. (2016) · Angewandte Chemie International Edition · doi:10.1002/anie.201600113 · Cited by 364

Deep‐Red to Near‐Infrared Thermally Activated Delayed Fluorescence in Organic Solid Films and Electroluminescent Devices

Li, C., Duan, R., Liang, B., Han, G., Wang, S., Ye, K., Liu, Y., Yi, Y., & Wang, Y. (2017) · Angewandte Chemie International Edition · doi:10.1002/anie.201706464 · Cited by 347

Twisted Intramolecular Charge Transfer State for Long-Wavelength Thermally Activated Delayed Fluorescence

Tanaka, H., Shizu, K., Nakanotani, H., & Adachi, C. (2013) · Chemistry of Materials · doi:10.1021/cm402428a · Cited by 334

Oxadiazole- and triazole-based highly-efficient thermally activated delayed fluorescence emitters for organic light-emitting diodes

Lee, J., Shizu, K., Tanaka, H., Nomura, H., Yasuda, T., & Adachi, C. (2013) · Journal of Materials Chemistry C · doi:10.1039/c3tc30699b · Cited by 330

Design Strategy for 25% External Quantum Efficiency in Green and Blue Thermally Activated Delayed Fluorescent Devices

Lee, D. R., Kim, M., Jeon, S. K., Hwang, S., Lee, C. W., & Lee, J. Y. (2015) · Advanced Materials · doi:10.1002/adma.201502053 · Cited by 307

Over 10% EQE Near‐Infrared Electroluminescence Based on a Thermally Activated Delayed Fluorescence Emitter

Yuan, Y., Hu, Y., Zhang, Y., Lin, J., Wang, Y., Jiang, Z., Liao, L., & Lee, S. (2017) · Advanced Functional Materials · doi:10.1002/adfm.201700986 · Cited by 301

Highly Efficient Far Red/Near‐Infrared Solid Fluorophores: Aggregation‐Induced Emission, Intramolecular Charge Transfer, Twisted Molecular Conformation, and Bioimaging Applications

Lu, H., Zheng, Y., Zhao, X., Wang, L., Ma, S., Han, X., Xu, B., Tian, W., & Gao, H. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201507031 · Cited by 299

Full‐Color Delayed Fluorescence Materials Based on Wedge‐Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance

Park, I. S., Lee, S. Y., Adachi, C., & Yasuda, T. (2016) · Advanced Functional Materials · doi:10.1002/adfm.201505106 · Cited by 280

A Universal Host Material for High External Quantum Efficiency Close to 25% and Long Lifetime in Green Fluorescent and Phosphorescent OLEDs

Cho, Y. J., Yook, K. S., & Lee, J. Y. (2014) · Advanced Materials · doi:10.1002/adma.201400347 · Cited by 264

Above 30% External Quantum Efficiency in Green Delayed Fluorescent Organic Light-Emitting Diodes

Lee, D. R., Kim, B. S., Lee, C. W., Im, Y., Yook, K. S., Hwang, S., & Lee, J. Y. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b01220 · Cited by 245

Highly Efficient Red–Orange Delayed Fluorescence Emitters Based on Strong π‐Accepting Dibenzophenazine and Dibenzoquinoxaline Cores: toward a Rational Pure‐Red OLED Design

Furue, R., Matsuo, K., Ashikari, Y., Ooka, H., Amanokura, N., & Yasuda, T. (2018) · Advanced Optical Materials · doi:10.1002/adom.201701147 · Cited by 200

Highly Efficient Long-Wavelength Thermally Activated Delayed Fluorescence OLEDs Based on Dicyanopyrazino Phenanthrene Derivatives

Wang, S., Cheng, Z., Song, X., Yan, X., Ye, K., Liu, Y., Yang, G., & Wang, Y. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.6b14796 · Cited by 197

Controlling Synergistic Oxidation Processes for Efficient and Stable Blue Thermally Activated Delayed Fluorescence Devices

Cui, L., Deng, Y., Tsang, D. P., Jiang, Z., Zhang, Q., Liao, L., & Adachi, C. (2016) · Advanced Materials · doi:10.1002/adma.201602127 · Cited by 179

Controlled emission colors and singlet–triplet energy gaps of dihydrophenazine-based thermally activated delayed fluorescence emitters

Lee, J.-Y., Shizu, K., Tanaka, H., Nakanotani, H., Yasuda, T., Kaji, H., & Adachi, C. (2015) · Journal of Materials Chemistry C · doi:10.1039/c4tc02530j · Cited by 168

Molecular design to regulate the photophysical properties of multifunctional TADF emitters towards high-performance TADF-based OLEDs with EQEs up to 22.4% and small efficiency roll-offs

Yu, L. K., Wu, Z., Xie, G., Zeng, W., Ma, D., & Yang, C. (2017) · Chemical Science · doi:10.1039/c7sc04669c · Cited by 164

Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full‐Color Delayed Fluorescence OLEDs

Lee, S. Y., Yasuda, T., Yang, Y. S., Zhang, Q., & Adachi, C. (2014) · Angewandte Chemie · doi:10.1002/ange.201402992 · Cited by 163

Rigidity-Induced Delayed Fluorescence by Ortho Donor-Appended Triarylboron Compounds: Record-High Efficiency in Pure Blue Fluorescent Organic Light-Emitting Diodes

Lee, Y. H., Park, S., Oh, J., Shin, J. W., Jung, J., Yoo, S., & Lee, M. H. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b05615 · Cited by 153

Aromatic‐Imide‐Based Thermally Activated Delayed Fluorescence Materials for Highly Efficient Organic Light‐Emitting Diodes

Li, M., Liu, Y., Duan, R., Wei, X., Yi, Y., Wang, Y., & Chen, C. (2017) · Angewandte Chemie International Edition · doi:10.1002/anie.201704435 · Cited by 152

Teaching an old acceptor new tricks: rationally employing 2,1,3-benzothiadiazole as input to design a highly efficient red thermally activated delayed fluorescence emitter

Ni, F., Wu, Z., Zhu, Z., Chen, T., Wu, K., Zhong, C., An, K., Wei, D., Ma, D., & Yang, C. (2017) · Journal of Materials Chemistry C · doi:10.1039/c7tc00025a · Cited by 143

Achieving a balance between small singlet–triplet energy splitting and high fluorescence radiative rate in a quinoxaline-based orange-red thermally activated delayed fluorescence emitter

Yu, L. K., Wu, Z., Xie, G., Zhong, C., Zhu, Z., Cong, H., Ma, D., & Yang, C. (2016) · Chemical Communications · doi:10.1039/c6cc05203g · Cited by 121

Bright white electroluminescence from a single polymer containing a thermally activated delayed fluorescence unit and a solution-processed orange OLED approaching 20% external quantum efficiency

Wang, Y., Zhu, Y., Xie, G., Zhan, H., Yang, C., & Cheng, Y. (2017) · Journal of Materials Chemistry C · doi:10.1039/c7tc03769d · Cited by 114

Tilted Spiro‐Type Thermally Activated Delayed Fluorescence Host for ≈100% Exciton Harvesting in Red Phosphorescent Electronics with Ultralow Doping Ratio

Wang, Y., Li, S., Wu, S., Huang, C., Kumar, S., Jiang, Z., Fung, M., & Liao, L. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201706228 · Cited by 77

X-shaped benzoylbenzophenone derivatives with crossed donors and acceptors for highly efficient thermally activated delayed fluorescence

Lee, S. Y., Yasuda, T., Park, I. S., & Adachi, C. (2015) · Dalton Transactions · doi:10.1039/c4dt03608e · Cited by 68

Simple aggregation–induced delayed fluorescence materials based on anthraquinone derivatives for highly efficient solution–processed red OLEDs

Huang, B., Ji, Y., Li, Z., Zhou, N., Jiang, W., Feng, Y., Lin, B., & Sun, Y. (2017) · Journal of Luminescence · doi:10.1016/j.jlumin.2017.03.038 · Cited by 65

Towards highly efficient red thermally activated delayed fluorescence materials by the control of intra-molecular π – π stacking interactions

Zhang, Y., Zhang, D., Cai, M., Li, Y., Zhang, D., Qiu, Y., & Duan, L. (2016) · Nanotechnology · doi:10.1088/0957-4484/27/9/094001 · Cited by 61

Thermally activated delayed fluorescence emitters with a m,m-di-tert-butyl-carbazolyl benzoylpyridine core achieving extremely high blue electroluminescence efficiencies

Rajamalli, P., Vasudevan, T., Senthilkumar, N., Chen-Cheng, R.-W., Lin, H., & Cheng, C. (2017) · Journal of Materials Chemistry C · doi:10.1039/c7tc00457e · Cited by 61

Donor−σ–Acceptor Molecules for Green Thermally Activated Delayed Fluorescence by Spatially Approaching Spiro Conformation

Wang, Y., Wu, S., Yuan, Y., Li, S., Fung, M., Liao, L., & Jiang, Z. (2017) · Organic Letters · doi:10.1021/acs.orglett.7b01281 · Cited by 60

Near-infrared thermally activated delayed fluorescent dendrimers for the efficient non-doped solution-processed organic light-emitting diodes

Sun, K., Chu, D. Y., Cui, Y., Tian, W., Sun, Y., & Jiang, W. (2017) · Organic Electronics · doi:10.1016/j.orgel.2017.06.034 · Cited by 58

Thermally activated delayed fluorescence materials based on benzophenone derivative as emitter for efficient solution-processed non-doped green OLED

Huang, B., Ban, X., Sun, K., Ma, Z., Mei, Y., Jiang, W., Lin, B., & Sun, Y. (2016) · Dyes and Pigments · doi:10.1016/j.dyepig.2016.06.025 · Cited by 51

Blue thermally activated delayed fluorescent emitters having a bicarbazole donor moiety

Kim, H. M., Choi, J. M., & Lee, J. Y. (2016) · RSC Advances · doi:10.1039/c6ra13240e · Cited by 45

Tuning the emission from local excited-state to charge-transfer state transition in quinoxaline-based butterfly-shaped molecules: Efficient orange OLEDs based on thermally activated delayed fluorescence emitter

Yu, L. K., Wu, Z., Zhong, C., Xie, G., Wu, K., Ma, D., & Yang, C. (2017) · Dyes and Pigments · doi:10.1016/j.dyepig.2017.02.035 · Cited by 44

Benzoisoquinoline-1,3-dione acceptor based red thermally activated delayed fluorescent emitters

Yun, J. H., & Lee, J. Y. (2017) · Dyes and Pigments · doi:10.1016/j.dyepig.2017.05.036 · Cited by 40

Organic Light-emitting Diodes Based on Donor-substituted Phthalimide and Maleimide Fluorophores

Jang, M. E., Yasuda, T., Lee, J.-Y., Lee, S. Y., & Adachi, C. (2015) · Chemistry Letters · doi:10.1246/cl.150454 · Cited by 33

Rational design of phenoxazine-based donor–acceptor–donor thermally activated delayed fluorescent molecules with high performance

Lu, J., Zheng, Y., & Zhang, J. (2015) · Physical Chemistry Chemical Physics · doi:10.1039/c5cp02810h · Cited by 32

Twisted penta‐Carbazole/Benzophenone Hybrid Compound as Multifunctional Organic Host, Dopant or Non‐doped Emitter for Highly Efficient Solution‐Processed Delayed Fluorescence OLEDs

Wang, F., Cao, X., Mei, L., Zhang, X., Hu, J., & Tao, Y. (2018) · Chinese Journal of Chemistry · doi:10.1002/cjoc.201700703 · Cited by 24

Enhanced spin-orbit coupling driven by state mixing in organic molecules for OLED applications

Huang, T., & Li, E. Y. (2016) · Organic Electronics · doi:10.1016/j.orgel.2016.10.026 · Cited by 16

Over 20% external quantum efficiency in red thermally activated delayed fluorescence organic light-emitting diodes using a reverse intersystem crossing activating host

Kim, J. H., Lee, D. R., Han, S. H., & Lee, J. Y. (2018) · Journal of Materials Chemistry C · doi:10.1039/c7tc05811j · Cited by 15

A Brief History of OLEDs—Emitter Development and Industry Milestones

Hong, G., Gan, X., Leonhardt, C., Zhang, Z., Seibert, J., Busch, J. M., & Bräse, S. (2021) · Advanced Materials · doi:10.1002/adma.202005630 · Cited by 1,467

High‐Efficiency Red Organic Light‐Emitting Diodes with External Quantum Efficiency Close to 30% Based on a Novel Thermally Activated Delayed Fluorescence Emitter

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

Recent progress of narrowband TADF emitters and their applications in OLEDs

Teng, J., Wang, Y., & Chen, C. (2020) · Journal of Materials Chemistry C · doi:10.1039/d0tc02682d · Cited by 320

Realizing Record‐High Electroluminescence Efficiency of 31.5 % for Red Thermally Activated Delayed Fluorescence Molecules

Cai, Z., Wu, X. C., Liu, H., Guo, J., Yang, D., Ma, D., Zhao, Z., & Tang, B. Z. (2021) · Angewandte Chemie International Edition · doi:10.1002/anie.202111172 · Cited by 233

High‐Performance Multi‐Resonance Thermally Activated Delayed Fluorescence Emitters for Narrowband Organic Light‐Emitting Diodes

Jiang, H., Jin, J., & Wong, W. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202306880 · Cited by 235

Cover Picture: Red/Near‐Infrared Thermally Activated Delayed Fluorescence OLEDs with Near 100 % Internal Quantum Efficiency (Angew. Chem. Int. Ed. 41/2019)

Chen, J., Tao, W., Chen, W., Xiao, Y., Wang, K., Cao, C., Yu, J., Li, S., Geng, F., Adachi, C., et al. (2019) · Angewandte Chemie International Edition · doi:10.1002/anie.201910421 · Cited by 6

Orange, red, and near-infrared thermally activated delayed fluorescent emitters

Zeng, W., & Yang, C. (2022) · Elsevier eBooks · doi:10.1016/b978-0-12-819810-0.00007-7

Titelbild: Red/Near‐Infrared Thermally Activated Delayed Fluorescence OLEDs with Near 100 % Internal Quantum Efficiency (Angew. Chem. 41/2019)

Chen, J., Tao, W., Chen, W., Xiao, Y., Wang, K., Cao, C., Yu, J., Li, S., Geng, F., Adachi, C., et al. (2019) · Angewandte Chemie · doi:10.1002/ange.201910421 · Cited by 1

Molecular Design Strategy for Orange Red Thermally Activated Delayed Fluorescence Emitters in Organic Light‐Emitting Diodes (OLEDs)

Naveen, K. R., Prabhu, C. P. K., Braveenth, R., & Kwon, J. H. (2021) · Chemistry - A European Journal · doi:10.1002/chem.202103532 · Cited by 63

Molecular Design Tactics for Highly Efficient Thermally Activated Delayed Fluorescence Emitters for Organic Light Emitting Diodes

Konidena, R. K., & Lee, J. Y. (2018) · The Chemical Record · doi:10.1002/tcr.201800136 · Cited by 40