journal article·2024-08Open access

Halogenated Dibenzo[f,h]quinoxaline Units Constructed 2D‐Conjugated Guest Acceptors for 19% Efficiency Organic Solar Cells

Jingshun Gao, Hairui Bai, Ping Li, Yibo Zhou, Wenyan Su, Chang Liu, Xiaoxiao Li, Yue Wu, Bin Hu, Zezhou Liang, Zhaozhao Bi, Xiong Li, Lihe Yan, Huiling Du, Guanghao Lu, Chao Gao, Kun Wang, Yuhang Liu, Wei Ma, Qunping Fan

Advanced Science· Volume 11· Issue 31

Abstract

Abstract Halogenation of Y‐series small‐molecule acceptors (Y‐SMAs) is identified as an effective strategy to optimize photoelectric properties for achieving improved power‐conversion‐efficiencies (PCEs) in binary organic solar cells (OSCs). However, the effect of different halogenation in the 2D‐structured large π‐fused core of guest Y‐SMAs on ternary OSCs has not yet been systematically studied. Herein, four 2D‐conjugated Y‐SMAs (X‐QTP‐4F, including halogen‐free H‐QTP‐4F, chlorinated Cl‐QTP‐4F, brominated Br‐QTP‐4F, and iodinated I‐QTP‐4F) by attaching different halogens into 2D‐conjugation extended dibenzo[f,h]quinoxaline core are developed. Among these X‐QTP‐4F, Cl‐QTP‐4F has a higher absorption coefficient, optimized molecular crystallinity and packing, suitable cascade energy levels, and complementary absorption with PM6:L8‐BO host. Moreover, among ternary PM6:L8‐BO:X‐QTP‐4F blends, PM6:L8‐BO:Cl‐QTP‐4F obtains a more uniform and size‐suitable fibrillary network morphology, improved molecular crystallinity and packing, as well as optimized vertical phase distribution, thus boosting charge generation, transport, extraction, and suppressing energy loss of OSCs. Consequently, the PM6:L8‐BO:Cl‐QTP‐4F‐based OSCs achieve a 19.0% efficiency, which is among the state‐of‐the‐art OSCs based on 2D‐conjugated Y‐SMAs and superior to these devices based on PM6:L8‐BO host (17.70%) and with guests of H‐QTP‐4F (18.23%), Br‐QTP‐4F (18.39%), and I‐QTP‐4F (17.62%). The work indicates that halogenation in 2D‐structured dibenzo[f,h]quinoxaline core of Y‐SMAs guests is a promising strategy to gain efficient ternary OSCs.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Perovskite Materials and Applications · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China

School of Materials and Chemical Engineering Zhongyuan University of Technology Zhengzhou 451191 China

School of Materials Science and Engineering Xi'an University of Science and Technology Xi'an 710054 China

Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor‐Optoelectronics Materials and Devices College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China

Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an 710054 China

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Photonic Technique for Information School of Electronics Science & Engineering Faculty of Electronic and Information Engineering Xi'an Jiaotong University Xi'an 710049 China

Department of Physics Beijing Technology and Business University Beijing 100048 China

Key Laboratory of Liquid Crystal and Organic Photovoltaic Materials State Key Laboratory of Fluorine & Nitrogen Chemicals Xi'an Modern Chemistry Research Institute Xi'an 710065 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Office of Science · Basic Energy Sciences · U.S. Department of Energy

References (82)

Show source-provided references
1. 10.1126/science.adj365410.1126/science.adj3654 ↗
2. 10.1038/s41586-022-05295-810.1038/s41586-022-05295-8 ↗
3. 10.1002/adfm.20231121610.1002/adfm.202311216 ↗
4. 10.1007/s11426‐023‐1913‐310.1007/s11426‐023‐1913‐3 ↗
5. 10.1038/s41928-023-00950-y10.1038/s41928-023-00950-y ↗
6. 10.1021/acs.chemrev.2c0069610.1021/acs.chemrev.2c00696 ↗
7. 10.1016/j.joule.2023.12.00910.1016/j.joule.2023.12.009 ↗
8. Hu H. · Angew. Chem., Int. Ed. · 2024
9. 10.1002/anie.20231875610.1002/anie.202318756 ↗
10. 10.1038/s41560-022-01138-y10.1038/s41560-022-01138-y ↗
11. 10.1002/adma.20210278710.1002/adma.202102787 ↗
12. 10.1039/D2EE00595F10.1039/D2EE00595F ↗
13. 10.1038/s41467-023-36917-y10.1038/s41467-023-36917-y ↗
14. 10.1002/anie.20231963510.1002/anie.202319635 ↗
15. 10.1002/anie.20231836010.1002/anie.202318360 ↗
16. 10.1002/anie.20231622710.1002/anie.202316227 ↗
17. 10.1002/anie.20231379110.1002/anie.202313791 ↗
18. 10.1021/jacs.0c0980010.1021/jacs.0c09800 ↗
19. 10.1016/j.joule.2019.09.01010.1016/j.joule.2019.09.010 ↗
20. 10.1002/adma.20190421510.1002/adma.201904215 ↗
21. 10.1002/adma.20180086810.1002/adma.201800868 ↗
22. 10.1002/anie.20210476610.1002/anie.202104766 ↗
23. 10.1038/s41560-021-00820-x10.1038/s41560-021-00820-x ↗
24. 10.1016/j.joule.2023.01.00910.1016/j.joule.2023.01.009 ↗
25. 10.1038/s41467-023-43846-310.1038/s41467-023-43846-3 ↗
26. 10.1002/anie.20231929510.1002/anie.202319295 ↗
27. 10.1002/cjoc.20230063610.1002/cjoc.202300636 ↗
28. 10.1002/adfm.20220080710.1002/adfm.202200807 ↗
29. 10.1038/s41570-022-00409-210.1038/s41570-022-00409-2 ↗
30. 10.1007/s40820-023-01208-010.1007/s40820-023-01208-0 ↗
31. 10.1002/cey2.26710.1002/cey2.267 ↗
32. 10.1002/anie.20231649510.1002/anie.202316495 ↗
33. 10.1002/anie.20231301610.1002/anie.202313016 ↗
34. 10.1002/adfm.20221138510.1002/adfm.202211385 ↗
35. Fan Q. · Sci. China Chem. · 2023 · 66 · 615
36. 10.1016/j.joule.2020.02.00410.1016/j.joule.2020.02.004 ↗
37. 10.1002/adma.20230535610.1002/adma.202305356 ↗
38. 10.1002/adma.20230821610.1002/adma.202308216 ↗
39. 10.1002/anie.20230796210.1002/anie.202307962 ↗
40. 10.1002/anie.20230859510.1002/anie.202308595 ↗
41. 10.1021/acsenergylett.2c0131610.1021/acsenergylett.2c01316 ↗
42. 10.1002/anie.20230826710.1002/anie.202308267 ↗
43. 10.1038/s41563-022-01244-y10.1038/s41563-022-01244-y ↗
44. 10.1002/adma.20230637310.1002/adma.202306373 ↗
45. 10.1016/j.joule.2024.01.00510.1016/j.joule.2024.01.005 ↗
46. 10.1002/anie.20230684710.1002/anie.202306847 ↗
47. 10.1002/anie.20230830710.1002/anie.202308307 ↗
48. 10.1002/anie.20230849610.1002/anie.202308496 ↗
49. 10.1002/anie.20230493110.1002/anie.202304931 ↗
50. 10.1002/anie.20230288810.1002/anie.202302888 ↗
51. 10.1002/adma.20231004610.1002/adma.202310046 ↗
52. 10.1002/adma.20210083010.1002/adma.202100830 ↗
53. 10.1038/s41467-022-30927-y10.1038/s41467-022-30927-y ↗
54. 10.1002/anie.20220776210.1002/anie.202207762 ↗
55. 10.1002/anie.20231263010.1002/anie.202312630 ↗
56. 10.1002/adma.20230739810.1002/adma.202307398 ↗
57. 10.1021/acsenergylett.2c0214010.1021/acsenergylett.2c02140 ↗
58. 10.1021/jacs.7b0267710.1021/jacs.7b02677 ↗
59. 10.1021/jacs.2c0316110.1021/jacs.2c03161 ↗
60. 10.1002/anie.20231603910.1002/anie.202316039 ↗
61. 10.1002/adma.20230036310.1002/adma.202300363 ↗
62. 10.1002/smll.20230916910.1002/smll.202309169 ↗
63. 10.1039/D3EE01164J10.1039/D3EE01164J ↗
64. 10.1002/anie.20230355110.1002/anie.202303551 ↗
65. 10.1021/acsenergylett.3c0074310.1021/acsenergylett.3c00743 ↗
66. 10.1002/anie.20230412710.1002/anie.202304127 ↗
67. 10.1039/D0EE00862A10.1039/D0EE00862A ↗
68. 10.1039/D3EE01333B10.1039/D3EE01333B ↗
69. 10.1002/anie.20220516810.1002/anie.202205168 ↗
70. 10.1039/D1EE01832A10.1039/D1EE01832A ↗
71. 10.1002/anie.20231789210.1002/anie.202317892 ↗
72. 10.1002/anie.20231859510.1002/anie.202318595 ↗
73. 10.1002/anie.20231562510.1002/anie.202315625 ↗
74. 10.1002/adfm.20231374410.1002/adfm.202313744 ↗
75. 10.1002/adfm.20231031210.1002/adfm.202310312 ↗
76. 10.1002/anie.20231629510.1002/anie.202316295 ↗
77. 10.1039/D3EE00090G10.1039/D3EE00090G ↗
78. 10.1039/D4EE01117A10.1039/D4EE01117A ↗
79. 10.1002/aenm.20240035410.1002/aenm.202400354 ↗
80. 10.1002/adma.20230463210.1002/adma.202304632 ↗
81. 10.1002/anie.20231442010.1002/anie.202314420 ↗
82. 10.1038/s41560-023-01309-510.1038/s41560-023-01309-5 ↗