绿光到深红光的有效调控:二苯并吡啶并喹喔啉类热激活延迟荧光材料

doi:10.11896/cldb.23110162

Abstract
Figure/Table
References
Related Citation (7)

Download:

Full Text ( PDF ) (8898KB)
Export: BibTeX | EndNote (RIS)

Abstract Efficient thermally activated delayed fluorescence (TADF) emitters have an important application for organic light-emitting diodes (OLEDs). However, due to the limitations of the energy gap law, the development of efficient red TADF emitters with wavelengthsover 600 nm is challenging. Herein, a novel rigid larger conjugated planar acceptor dibenzo[f, h]pyrido[3, 4-b] quinoxaline (DBPQ) had been designed, and three TADF materials, namely DBPQtCz, DBPQDMAC and DBPQPXZ, were synthesized by connecting with different donors (tCz, DMAC and PXZ) to DBPQ. With the enhancement of electron-donating ability of the corresponding donors, the emission wavelengths of DBPQtCz, DBPQDMAC and DBPQPXZ were significantly red-shifted and turned from green, red to deep-red. The OLED based on DBPQDMAC obtained maximum external quantum efficiency (EQE_max) up to 16.0%, and the peak electroluminescent (EL) of 612 nm, while the EQE_max of DBPQPXZ is 3.2%, and the peak EL is 658 nm. Meanwhile, the OLEDs based on DBPQtCz, DBPQDMAC and DBPQPXZ achieved extremely low turn-on voltages of 2.4, 2.5 and 2.8 V, respectively.

Key words： thermally activated delayed fluorescence dibenzo[f,h] pyrido [3,4-b] quinoxaline turn-on voltage red emission

Published: 10 January 2025 Online: 2025-01-10

CLC number:

O621.22

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Bo
	HUANG Feixiang
	XIE Fengming
	YANG Yaozu
	HU Yingyuan
	ZHAO Xin

Cite this article:

ZHANG Bo,HUANG Feixiang,XIE Fengming, et al. Efficient Regulation of Emission Color from Green to Deep-red: Dibenzo [f, h] pyrido[3, 4-b] Quinoxaline Acceptor Based TADF Emitters[J]. Materials Reports, 2025, 39(1): 23110162-7.

URL:

https://www.mater-rep.com/EN/10.11896/cldb.23110162 OR https://www.mater-rep.com/EN/Y2025/V39/I1/23110162

1 Yang H Y, Zhang H Y, Zhang M, et al. Chemical Engineering Journal, 2023, 468, 143721.
2 Xie F M, Zeng X Y, Zhou J X, et al. Journal of Materials Chemistry C, 2020, 8(44), 15728.
3 Xie F M, Wu P, Zou S J, et al. Advanced Electronic Materials, 2020, 6(1), 1900843.
4 Li H, Shu H, Wang X, et al. Dyes and Pigments, 2021, 184, 108810.
5 Wang H, Wang K, Chen J X, et al. Advanced Functional Materials, 2023, 33(41), 2304398.
6 Fan X, Hao X, Huang F, et al. Advanced Science, 2023, 10(28), 2303504.
7 Zhou C, Cao C, Yang D, et al. Materials Chemistry Frontiers, 2021, 5(7), 3209.
8 Dong R, Liu D, Li J, et al. Materials Chemistry Frontiers, 2022, 6(1), 40.
9 Si C, Hu Y N, Sun D, et al. Journal of Materials Chemistry C, 2023, 11(36), 12174.
10 Fecková M, Kalis I K, Roisnel T, et al. Chemistry-A European Journal, 2021, 27(3), 1145.
11 Qu L, Xiao H, Zhang B, et al. Chemical Engineering Journal, 2023, 471, 144709.
12 Long Y, Chen K, Li C, et al. Chemical Engineering Journal, 2023, 471, 144759.
13 Sun K, Cai Z, Jiang J, et al. Dyes and Pigments, 2020, 173, 107957.
14 Kumsampao J, Chaiwai C, Chasing P, et al. Chemistry—An Asian Journal, 2020, 15(19), 3029.
15 Gong X, Li P, Huang Y H, et al. Advanced Functional Materials, 2020, 30(16), 1908839.
16 Liang J, Li C, Cui Y, et al. Journal of Materials Chemistry C, 2020, 8(5), 1614.
17 Zhu L, Liu Y, Wang X, et al. Chemical Engineering Journal, 2023, 473, 145449.
18 Kothavale S, Kim S C, Cheong K, et al. Advanced Materials, 2023, 35(13), 2208602.
19 Zhang H Y, Yang H Y, Zhang M, et al. Materials Horizons, 2022, 9(9), 2425.
20 Chen J X, Xiao Y F, Wang K, et al. Angewandte Chemie International Edition, 2021, 133(5), 2508.
21 Zhao T, Jiang S, Wang Y, et al. ACS Applied Materials & Interfaces, 2023, 15(25), 30543.
22 Chen J X, Tao W W, Chen W C, et al. Angewandte Chemie International Edition, 2019, 131(41), 14802.
23 Wang S, Yan X, Cheng Z, et al. Angewandte Chemie International Edition, 2015, 54(44), 13068.
24 Yang Z, Ge X, Li W, et al. Chemical Engineering Journal, 2022, 442, 136219.
25 Gao T, Shen S, Qin Y, et al. Journal of Materials Chemistry C, 2022, 10(45), 17053.
26 Xiao F, Wang M, Lei Y, et al. Chemistry—An Asian Journal, 2020, 15(21), 3437.
27 Luo J, Xie Z, Lam J W Y, et al. Chemical Communications, 2001 (18), 1740.
28 Chen S, Zeng P, Wang W, et al. Journal of Materials Chemistry C, 2019, 7(10), 2886.
29 Nasiri S, Macionis S, Gudeika D, et al. Journal of Luminescence, 2020, 220, 116955.
30 Che W, Xe Y, Li Z. Asian Journal of Organic Chemistry, 2020, 9(9), 1262.
31 Xie F M, Li H Z, Dai G L, et al. ACS Applied Materials & Interfaces, 2019, 11(29), 26144.
32 Huang T, Liu D, Jiang J, et al. Chemistry—A European Journal, 2019, 25(46), 10926.
33 Si C, Hu Y N, Sun D, et al. Journal of Materials Chemistry C, 2023, 11(36), 12174.
34 Becke A D. The Journal of Chemical Physics, 1993, 98(2), 1372.
35 Zhang Q, Kuwabara H, Potscavage Jr W J, et al. Journal of the American Chemical Society, 2014, 136(52), 18070.
36 Wang Z, Zhu X, Zhang S, et al. Advanced Optical Materials, 2021, 9(5), 2001764.
37 Liu H, Liu H, Fan J, et al. Advanced Optical Materials, 2020, 8(21), 2001027.
38 Kandi D, Mansingh S, Behera A, et al. Journal of Luminescence, 2021, 231, 117792.
39 Zhang H, Li A, Li G, et al. Advanced Optical Materials, 2020, 8(14), 1902195.
40 Huo J, Zheng Y, Zhang D, et al. Dyes and Pigments, 2021, 196, 109781.
41 Zeng J, Guo J, Liu H, et al. Advanced Functional Materials, 2020, 30(17), 2000019.
42 Wu C, Zhang Y, Ma D, et al. Dyes and Pigments, 2020, 173, 107895.