journal article·2025-01Open access

Synergistic Effects of Solid and Solvent Additives on Film Morphology Enable Binary Organic Solar Cells with Efficiency of Over 19%

Keli Shi, Jing Lai, Xinxin Xia, Seonghun Jeong, Can Zhu, Liuyang Zhou, Jing Guo, Jinyuan Zhang, Changduk Yang, Xiaojun Li, Lei Meng, Zhi‐Guo Zhang, Beibei Qiu, Yongfang Li

Advanced Functional Materials· Volume 35· Issue 4

Abstract

Abstract Regulating the film morphology features of the photoactive layer is critically important for developing high‐performance organic solar cells (OSCs). Adding solvent or solid additives is widely used to realize fine‐tuned film morphology. However, most high‐performance OSCs are processed only using single component additive, either solvent additive or solid additive. Herein, two structurally similar analogs of 1‐benzothiophene (BT) and benzo[1,2‐b:4,5‐b']dithiophene (BDT) are applied as volatilizable solid additives and are used with the well‐known solvent additive 1‐chloronaphthalene (CN), respectively. Comprehensive morphology analysis revealed that the addition of BT with better volatilization can promote the formation of stronger molecular packing and desirable phase separation, resulting in higher charge mobility and more efficient charge separation. However, the insufficient volatilization of BDT caused excessive aggregation, leading to severe recombination. Consequently, the PMZ‐10:Y6 based binary OSCs treated with the hybrid additives of CN and BT delivered a notable efficiency of 19.03%, which is one of the best values of the Y6‐based binary devices reported so far. Overall, this work highlights the importance of hybrid additive strategy and the reasonable combination of solid and solvent additives in further advancing the development of OSCs field.
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Research context

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

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

Affiliations

Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Jinhua Zhejiang 321004 P. R. China

National Engineering Research Center for Colloidal Materials Shandong University Jinan Shandong 250100 P. R. China

School of Energy and Chemical Engineering Perovtronics Research Center Low Dimensional Carbon Materials Center Ulsan National Institute of Science and Technology (UNIST) 50 UNIST‐gil, Ulju‐gun Ulsan 44919 South Korea

Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction Hong Kong University of Science and Technology (HKUST) Clear Water Bay Hong Kong Kowloon 999077 P. R. China

Hebei Key Lab of Optic‐Electronic Information and Materials College of Physics Science and Technology Hebei University Baoding 071002 P. R. China

College of Materials Science and Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province

References (68)

Show source-provided references
1. 10.1002/adma.20200221710.1002/adma.202002217 ↗
2. 10.1002/adma.20230509210.1002/adma.202305092 ↗
3. 10.1021/jacs.2c0150310.1021/jacs.2c01503 ↗
4. 10.1016/j.joule.2019.06.01610.1016/j.joule.2019.06.016 ↗
5. 10.1016/j.joule.2019.12.01810.1016/j.joule.2019.12.018 ↗
6. 10.1002/adma.20190244710.1002/adma.201902447 ↗
7. 10.1007/s11426-014-5260-210.1007/s11426-014-5260-2 ↗
8. 10.1002/adma.20210747610.1002/adma.202107476 ↗
9. 10.1021/ja205977z10.1021/ja205977z ↗
10. 10.1039/C5EE02641E10.1039/C5EE02641E ↗
11. 10.1016/j.joule.2019.12.00410.1016/j.joule.2019.12.004 ↗
12. 10.1021/acs.accounts.7b0029310.1021/acs.accounts.7b00293 ↗
13. 10.1021/ar500074310.1021/ar5000743 ↗
14. 10.1038/natrevmats.2018.310.1038/natrevmats.2018.3 ↗
15. 10.1007/s11426-021-1180-610.1007/s11426-021-1180-6 ↗
16. 10.1007/s11426-022-1256-810.1007/s11426-022-1256-8 ↗
17. 10.1038/s41467-021-22032-310.1038/s41467-021-22032-3 ↗
18. 10.1002/adma.20140431710.1002/adma.201404317 ↗
19. 10.1016/j.joule.2019.01.00410.1016/j.joule.2019.01.004 ↗
20. 10.1038/s41563-022-01244-y10.1038/s41563-022-01244-y ↗
21. 10.1002/adma.20210242010.1002/adma.202102420 ↗
22. 10.1002/adma.20210951610.1002/adma.202109516 ↗
23. 10.1002/adma.20220208910.1002/adma.202202089 ↗
24. 10.1002/anie.20230883210.1002/anie.202308832 ↗
25. 10.1002/adma.20240034210.1002/adma.202400342 ↗
26. 10.1002/adma.20231093310.1002/adma.202310933 ↗
27. 10.1021/acs.accounts.6b0034710.1021/acs.accounts.6b00347 ↗
28. 10.1021/acsenergylett.7b0031510.1021/acsenergylett.7b00315 ↗
29. 10.1002/adma.20210831710.1002/adma.202108317 ↗
30. 10.1002/inf2.1227010.1002/inf2.12270 ↗
31. 10.1016/j.joule.2022.10.00510.1016/j.joule.2022.10.005 ↗
32. 10.1002/aenm.20230048110.1002/aenm.202300481 ↗
33. 10.1002/adma.20190837310.1002/adma.201908373 ↗
34. 10.1088/1361-6633/ab053010.1088/1361-6633/ab0530 ↗
35. 10.1021/jacs.8b0503810.1021/jacs.8b05038 ↗
36. 10.1016/j.joule.2020.03.02310.1016/j.joule.2020.03.023 ↗
37. 10.1021/acsenergylett.1c0128910.1021/acsenergylett.1c01289 ↗
38. 10.1038/s41467-020-20515-310.1038/s41467-020-20515-3 ↗
39. 10.1002/agt2.3110.1002/agt2.31 ↗
40. 10.1002/adfm.20230554110.1002/adfm.202305541 ↗
41. 10.1002/adma.20230291510.1002/adma.202302915 ↗
42. 10.1038/s41467-023-39832-410.1038/s41467-023-39832-4 ↗
43. 10.1002/adma.20230158310.1002/adma.202301583 ↗
44. 10.1016/j.joule.2022.12.00710.1016/j.joule.2022.12.007 ↗
45. 10.1002/adma.20170711410.1002/adma.201707114 ↗
46. 10.1002/adma.20180045310.1002/adma.201800453 ↗
47. 10.1021/jacs.2c0530310.1021/jacs.2c05303 ↗
48. 10.1038/s41467-018-07017-z10.1038/s41467-018-07017-z ↗
49. 10.1016/j.isci.2020.10096510.1016/j.isci.2020.100965 ↗
50. 10.1002/adma.20230833410.1002/adma.202308334 ↗
51. 10.1038/s41467-023-37526-510.1038/s41467-023-37526-5 ↗
52. 10.1002/anie.20230971310.1002/anie.202309713 ↗
53. 10.1039/D2TA04776D10.1039/D2TA04776D ↗
54. 10.1002/adma.20210530110.1002/adma.202105301 ↗
55. 10.1002/jcc.2288510.1002/jcc.22885 ↗
56. 10.1038/s41467-020-16509-w10.1038/s41467-020-16509-w ↗
57. 10.1103/PhysRevB.82.24520710.1103/PhysRevB.82.245207 ↗
58. 10.1002/aenm.20130146910.1002/aenm.201301469 ↗
59. 10.1038/nphoton.2014.17210.1038/nphoton.2014.172 ↗
60. 10.1002/adma.20060109310.1002/adma.200601093 ↗
61. 10.1021/jp311930m10.1021/jp311930m ↗
62. 10.1002/adma.20110473810.1002/adma.201104738 ↗
63. 10.1063/1.235678310.1063/1.2356783 ↗
64. 10.1002/solr.20200033710.1002/solr.202000337 ↗
65. 10.1002/adfm.20220571110.1002/adfm.202205711 ↗
66. 10.1016/j.joule.2021.04.00210.1016/j.joule.2021.04.002 ↗
67. 10.1038/s41467-019-08361-410.1038/s41467-019-08361-4 ↗
68. 10.1002/adfm.20210927110.1002/adfm.202109271 ↗