DataVXACS Energy LettersPaper
journal article·2023-07-14

Tunable Molecular Packing of Dopant-Free Hole-Transport Polymers for Perovskite Solar Cells

Qiang Fu, Hang Liu, Yuping Gao, Xiangjian Cao, Yu Li, Yang Yang, Jian Wang, Yongsheng Chen, Zhaoyang Yao, Yongsheng Liu

ACS Energy Letters· Volume 8· Issue 7
Publisher page
Source abstract

Abstract

Optimizing the molecular packing and orientation of dopant-free hole-transport materials (HTMs) to promote their charge transport is a challenging but effective strategy for achieving high-performance perovskite solar cells (PSCs). Here, we successfully demonstrated tunable molecular packing and orientation of polymers by regulating the donor building blocks by shifting the conjugated side chain to the main chain and using a large core unit. The conjugated polymer we developed, namely PC-DPP, with a thiophene-substituted phenanthrocarbazole (PC-T) as a donor unit and diketopyrrolopyrrole (DPP) as an acceptor unit, shows a preferred face-on orientation. By contrast, the control PBDT-DPP polymer shows a preferred edge-on orientation. As a result, the PC-DPP film shows enlarged hole mobility and strengthened interfacial contact with the perovskite surface. Consequently, in contrast to the PBDT-DPP HTM, the device using dopant-free PC-DPP dramatically improved the efficiency from 17.27% to 22.67%. This work paves a new path for developing dopant-free HTMs.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materials

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

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

Affiliations

The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry and Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin 300071, People’s Republic of China

The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (Tianjin), Tianjin 300192, People’s Republic of China

Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China

Funding

Natural Science Foundation of Hebei Province · Nankai University · National Key Research and Development Program of China · China Postdoctoral Science Foundation · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Haihe Laboratory of Sustainable Chemical Transformations

References (51)

Show source-provided references
1. 10.1021/ja809598r10.1021/ja809598r ↗
2. 10.1038/srep0059110.1038/srep00591 ↗
3. 10.1126/science.122860410.1126/science.1228604 ↗
4. 10.1126/science.aap928210.1126/science.aap9282 ↗
5. 10.1021/acs.chemrev.0c0010710.1021/acs.chemrev.0c00107 ↗
6. 10.1126/science.abc441710.1126/science.abc4417 ↗
7. 10.1038/s41560-020-00756-810.1038/s41560-020-00756-8 ↗
8. 10.1016/j.esci.2021.09.00110.1016/j.esci.2021.09.001 ↗
9. 10.1002/anie.20201312810.1002/anie.202013128 ↗
10. 10.1002/anie.20210702010.1002/anie.202107020 ↗
11. 10.1002/anie.20181080910.1002/anie.201810809 ↗
12. 10.1038/nenergy.2015.1710.1038/nenergy.2015.17 ↗
13. 10.1038/s41560-017-0067-y10.1038/s41560-017-0067-y ↗
14. 10.1039/D0EE03312J10.1039/D0EE03312J ↗
15. 10.1002/adfm.20210996810.1002/adfm.202109968 ↗
16. 10.1039/D1EE02843J10.1039/D1EE02843J ↗
17. 10.1126/science.abp887310.1126/science.abp8873 ↗
18. 10.1126/science.abo275710.1126/science.abo2757 ↗
19. 10.1038/s41586-021-03406-510.1038/s41586-021-03406-5 ↗
20. 10.1039/c3ta12681a10.1039/c3ta12681a ↗
21. 10.1021/acs.chemmater.6b0177710.1021/acs.chemmater.6b01777 ↗
22. 10.1021/ja805850q10.1021/ja805850q ↗
23. 10.1039/C4EE01589D10.1039/C4EE01589D ↗
24. 10.1021/acsenergylett.1c0281210.1021/acsenergylett.1c02812 ↗
25. 10.1021/acsenergylett.7b0058210.1021/acsenergylett.7b00582 ↗
26. 10.1063/1.135916110.1063/1.1359161 ↗
27. 10.1038/s41467-018-07255-110.1038/s41467-018-07255-1 ↗
28. 10.3390/polym1310165210.3390/polym13101652 ↗
29. 10.1038/s41586-019-1036-310.1038/s41586-019-1036-3 ↗
30. 10.1039/c3ee40343b10.1039/c3ee40343b ↗
31. 10.1002/adma.20150429310.1002/adma.201504293 ↗
32. 10.1039/D0EE01655A10.1039/D0EE01655A ↗
33. 10.1002/anie.20221061310.1002/anie.202210613 ↗
34. 10.1002/anie.20221035610.1002/anie.202210356 ↗
35. 10.1002/aenm.20210269710.1002/aenm.202102697 ↗
36. 10.1021/acsenergylett.1c0038510.1021/acsenergylett.1c00385 ↗
37. 10.1007/s11426-021-1084-y10.1007/s11426-021-1084-y ↗
38. 10.1021/jacs.2c0402910.1021/jacs.2c04029 ↗
39. 10.1021/jacs.0c0835210.1021/jacs.0c08352 ↗
40. 10.1002/anie.20211434110.1002/anie.202114341 ↗
41. 10.1007/s10854-019-02019-z10.1007/s10854-019-02019-z ↗
42. 10.1002/aenm.20210096710.1002/aenm.202100967 ↗
43. 10.1002/aenm.20210405010.1002/aenm.202104050 ↗
44. 10.1002/anie.20220184710.1002/anie.202201847 ↗
45. 10.1021/acsnano.1c0219110.1021/acsnano.1c02191 ↗
46. 10.1016/j.joule.2020.06.00710.1016/j.joule.2020.06.007 ↗
47. 10.1002/aenm.20190265310.1002/aenm.201902653 ↗
48. 10.1038/s41467-020-17868-010.1038/s41467-020-17868-0 ↗
49. 10.1021/acsenergylett.0c0259910.1021/acsenergylett.0c02599 ↗
50. 10.1126/science.aay969810.1126/science.aay9698 ↗
51. 10.1021/jacs.6b0632010.1021/jacs.6b06320 ↗