[1] H. Uoyama, K. Goushi, K. Shizu, H. Nomura, C. Adachi. Highly efficient organic light-emitting diodes from delayed fluorescence. Nature, 492, 234-238(2012).
[2] Q. Zhang, B. Li, S. Huang, H. Nomura, H. Tanaka, C. Adachi. Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence. Nat. Photonics, 8, 326-332(2014).
[3] K. Goushi, K. Yoshida, K. Sato, C. Adachi. Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion. Nat. Photonics, 6, 253-258(2012).
[4] J. Zhao, C. Zheng, Y. Zhou, C. Li, J. Ye, X. Du, W. Li, Z. He, M. Zhang, H. Lin, S. Tao, X. Zhang. Novel small-molecule electron donor for solution-processed ternary exciplex with 24% external quantum efficiency in organic light-emitting diode. Mater. Horiz., 6, 1425-1432(2019).
[5] Z.-P. Chen, D.-Q. Wang, M. Zhang, K. Wang, Y.-Z. Shi, J.-X. Chen, W.-W. Tao, C.-J. Zheng, S.-L. Tao, X.-H. Zhang. Optimization on molecular restriction for highly efficient thermally activated delayed fluorescence emitters. Adv. Opt. Mater., 6, 1800935(2018).
[6] Q. Zhang, D. Tsang, H. Kuwabara, Y. Hatae, B. Li, T. Takahashi, S. Y. Lee, T. Yasuda, C. Adachi. Nearly 100% internal quantum efficiency in undoped electroluminescent devices employing pure organic emitters. Adv. Mater., 27, 2096-2100(2015).
[7] K. Guo, H. Wang, Z. Wang, C. Si, C. Peng, G. Chen, J. Zhang, G. Wang, B. Wei. Stable Green phosphorescence organic light-emitting diodes with low efficiency roll-off using a novel bipolar thermally activated delayed fluorescence material as host. Chem. Sci., 8, 1259-1268(2017).
[8] Y. J. Cho, K. S. Yook, J. Y. Lee. A universal host material for high external quantum efficiency close to 25% and long lifetime in green fluorescent and phosphorescent OLEDs. Adv. Mater., 26, 4050-4055(2014).
[9] S.-W. Li, C.-H. Yu, C.-L. Ko, T. Chatterjee, W.-Y. Hung, K.-T. Wong. Cyanopyrimidine−carbazole hybrid host materials for high efficiency and low-efficiency roll-off TADF OLEDs. ACS Appl. Mater. Interfaces, 10, 12930-12936(2018).
[10] C. Murawski, K. Leo, M. C. Gather. Efficiency roll-off in organic light-emitting diodes. Adv. Mater., 25, 6801-6827(2013).
[11] C.-K. Moon, K. Suzuki, K. Shizu, C. Adachi, H. Kaji, J.-J. Kim. Combined inter- and intramolecular charge-transfer processes for highly efficient fluorescent organic light-emitting diodes with reduced triplet exciton quenching. Adv. Mater., 29, 1606448(2017).
[12] D. Zhang, X. Song, M. Cai, H. Kaji, L. Duan. Versatile indolocarbazole-isomer derivatives as highly emissive emitters and ideal hosts for thermally activated delayed fluorescent OLEDs with alleviated efficiency roll-off. Adv. Mater., 30, 1705406(2018).
[13] D. H. Ahn, H. Lee, S. W. Kim, D. Karthik, J. Lee, H. Jeong, J. Y. Lee, J. H. Kwon. Highly twisted donor−acceptor boron emitter and high triplet host material for highly efficient blue thermally activated delayed fluorescent device. ACS Appl. Mater. Interfaces, 11, 14909-14916(2019).
[14] T.-L. Wu, M.-J. Huang, C.-C. Lin, P.-Y. Huang, T.-Y. Chou, R.-W. Chen-Cheng, H.-W. Lin, R.-S. Liu, C.-H. Cheng. Diboron compound-based organic light-emitting diodes with high efficiency and reduced efficiency roll-off. Nat. Photonics, 12, 235-240(2018).
[15] K.-W. Tsai, M.-K. Hung, Y.-H. Mao, S.-A. Chen. Solution-processed thermally activated delayed fluorescent OLED with high EQE as 31% using high triplet energy crosslinkable hole transport materials. Adv. Funct. Mater., 29, 1901025(2019).
[16] Y.-K. Wang, C.-C. Huang, H. Ye, C. Zhong, A. Khan, S.-Y. Yang, M.-K. Fung, Z.-Q. Jiang, C. Adachi, L.-S. Liao. Through space charge transfer for efficient sky-blue thermally activated delayed fluorescence (TADF) emitter with unconjugated connection. Adv. Opt. Mater., 8, 1901150(2020).
[17] K. Duan, D. Wang, M. Yang, Z. Liu, C. Wang, T. Tsuboi, C. Deng, Q. Zhang. Weakly conjugated phosphine oxide hosts for efficient blue thermally activated delayed fluorescence organic light-emitting diodes. ACS Appl. Mater. Interfaces, 12, 30591-30599(2020).
[18] R. Furue, K. Matsuo, Y. Ashikari, H. Ooka, N. Amanokura, T. Yasuda. Highly efficient red–orange delayed fluorescence emitters based on strong π-accepting dibenzophenazine and dibenzoquinoxaline cores: toward a rational pure-red OLED design. Adv. Opt. Mater., 6, 1701147(2018).
[19] M. K. Etherington, J. Gibson, H. F. Higginbotham, T. J. Penfold, A. P. Monkman. Revealing the spin–vibronic coupling mechanism of thermally activated delayed fluorescence. Nat. Commun., 7, 13680(2016).
[20] Y. Kondo, K. Yoshiura, S. Kitera, H. Nishi, S. Oda, H. Gotoh, Y. Sasada, M. Yanai, T. Hatakeyama. Narrowband deep-blue organic light-emitting diode featuring an organoboron-based emitter. Nat. Photonics, 13, 678-682(2019).
[21] J. Li, D. Ding, Y. Wei, J. Zhang, H. Xu. A “Si-locked” phosphine oxide host with suppressed structural relaxation for highly efficient deep-blue TADF diodes. Adv. Opt. Mater., 4, 522-528(2016).
[22] X. Li, Y.-Z. Shi, K. Wang, M. Zhang, C.-J. Zheng, D.-M. Sun, G.-L. Dai, X.-C. Fan, D.-Q. Wang, W. Liu, Y.-Q. Li, J. Yu, X.-M. Ou, C. Adachi, X.-H. Zhang. Thermally activated delayed fluorescence carbonyl derivatives for organic light-emitting diodes with extremely narrow full width at half-maximum. ACS Appl. Mater. Interfaces, 11, 13472-13480(2019).
[23] S. Oda, B. Kawakami, R. Kawasumi, R. Okita, T. Hatakeyama. Multiple resonance effect-induced sky-blue thermally activated delayed fluorescence with a narrow emission band. Org. Lett., 21, 9311-9314(2019).
[24] R. E. Slusher, C. Weisbuch. Optical microcavities in condensed matter systems. Solid State Commun., 92, 149-158(1994).
[25] D. Poitras, C.-C. Kuo, C. Py. Design of high-contrast OLEDs with microcavity effect. Opt. Express, 16, 8003-8015(2008).
[26] R. H. Jordan, A. Dodabalapur, R. E. Slusher. Efficiency enhancement of microcavity organic light emitting diodes. Appl. Phys. Lett., 69, 1997-1999(1996).
[27] H. Peng, J. Sun, X. Zhu, X. Yu, M. Wong, H.-S. Kwok. High-efficiency microcavity top-emitting organic light-emitting diodes using silver anode. Appl. Phys. Lett., 88, 073517(2006).
[28] M. J. Park, S. K. Kim, R. Pode, J. H. Kwon. Low absorption semi-transparent cathode for micro-cavity top-emitting organic light emitting diodes. Org. Electron., 52, 153-158(2018).
[29] Y.-F. Liu, J. Feng, Y.-G. Bi, J.-F. Song, Y. Jin, Y. Bai, Q.-D. Chen, H.-B. Sun. Omnidirectional emission from top-emitting organic light-emitting devices with microstructured cavity. Opt. Lett., 37, 124-126(2012).
[30] M. Wang, J. Lin, Y.-C. Hsiao, X. Liu, B. Hu. A nanoporous polymer film as a diffuser as well as a light extraction component for top emitting organic light emitting diodes with a strong microcavity structure. Nanoscale, 8, 8575-8582(2016).
[31] T. Schwab, S. Schubert, S. Hofmann, M. Fröbel, C. Fuchs, M. Thomschke, L. Müller-Meskamp, K. Leo, M. C. Gather. Highly efficient color stable inverted white top-emitting OLEDs with ultra-thin wetting layer top electrodes. Adv. Optical Mater., 1, 707-713(2013).
[32] G. H. Kim, R. Lampande, J. B. Im, J. M. Lee, J. Y. Lee, J. H. Kwon. Controlling the exciton lifetime of blue thermally activated delayed fluorescence emitters using a heteroatom-containing pyridoindole donor moiety. Mater. Horiz., 4, 619-624(2017).
[33] V. Bulović, V. B. Khalfin, G. Gu, P. E. Burrows, D. Z. Garbuzov, S. R. Forrest. Weak microcavity effects in organic light-emitting devices. Phys. Rev. B, 58, 3730-3740(1998).
[34] L. Frédéric, A. Desmarchelier, R. Plais, L. Lavnevich, G. Muller, C. Villafuerte, G. Clavier, E. Quesnel, B. Racine, S. Meunier-Della-Gatta, J.-P. Dognon, P. Thuéry, J. Crassous, L. Favereau, G. Pieters. Maximizing chiral perturbation on thermally activated delayed fluorescence emitters and elaboration of the first top-emission circularly polarized OLED. Adv. Funct. Mater., 30, 2004838(2020).
[35] M. J. Park, Y. H. Son, G. H. Kim, R. Lampande, H. W. Bae, R. Pode, Y. K. Lee, W. J. Song, J. H. Kwon. Device performances of third order micro-cavity green top-emitting organic light emitting diodes. Org. Electron., 26, 458-463(2015).
[36] W. H. Lee, P. J. Jesuraj, H. Hafeez, D. H. Kim, C. M. Lee, S. H. Won, S. T. Shin, S. Park, T.-S. Bae, S. M. Yu, M. Song, C.-S. Kim, S. Y. Ryu. Comparison of organic light emitting diode performance using the spectroradiometer and the integrating sphere measurements. AIP Adv., 10, 095011(2020).
[37] E. F. Schubert, N. E. J. Hunt, M. Micovic, R. J. Malik, D. L. Sivco, A. Y. Cho, G. J. Zydzik. Highly efficient light-emitting diodes with microcavities. Science, 265, 943-945(1994).
[38] B. S. Chen, L. Deng, J. Xie, L. Peng, L. Xie, Q. Fan, W. Huang. Recent developments in top-emitting organic light-emitting diodes. Adv. Mater., 22, 5227-5239(2010).
[39] B. Hu, H. Chen, C. Li, W. Huang, M. Ichikawa. High-refractive-index capping layer improves top-light-emitting device performance. Appl. Opt., 59, 4114-4121(2020).
[40] S. K. Kim, R. Lampande, J. H. Kwon. Electro-optically efficient and thermally stable multilayer semitransparent pristine Ag cathode structure for top-emission organic light-emitting diodes. ACS Photon., 6, 2957-2965(2019).
[41] Y. Fu, X. Hu, Q. Gong. Silicon photonic crystal all-optical logic gates. Phys. Lett. A, 377, 329-333(2013).
[42] G. Antonacci, G. Lepert, C. Paterson, P. Török. Elastic suppression in Brillouin imaging by destructive interference. Appl. Phys. Lett., 107, 061102(2015).