journal article·2021-06-28

4-Bromoaniline Passivation for Efficient and Stable All-Inorganic CsPbI2Br Planar Perovskite Solar Cells

Yuzhu Li, Jiajun Yang, Lai Xie, Yu Li, Xiwen Liang, Xubing Lu, Xingsen Gao, Jinwei Gao, Lingling Shui, Sujuan Wu, Jun-Ming Liu

ACS Applied Energy Materials· Volume 4· Issue 6
Publisher page

Abstract

In this work, 4-bromoaniline (BrAL) is employed to modify the CsPbI2Br/carbon electrode interface to passivate defects of all-inorganic CsPbI2Br perovskite solar cells (PSCs). The effects of BrAL modification on the structure, light absorption, and trap-state density (Ntrap) of CsPbI2Br films and the carrier recombination process, photoelectrical characteristics, and air stability of the PSCs are systematically studied. The results show that the hydrophobic BrAL interlayer modification can lead to a better matched energy-level alignment, reduce the Ntrap to construct uniform CsPbI2Br films, and suppress carrier recombination to promote charge transport and collection. Thus, the modified PSC achieves a higher power conversion efficiency (PCE) of 11.34% with less hysteresis (reference-PSC, 9.50%) and better stability in ambient air. The BrAL passivation provides a good strategy to enhance the photoelectrical performance and air stability of all-inorganic PSCs.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties

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

Affiliations

Institute for Advanced Materials, South China Normal University, Guangzhou 510006, P. R. China

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China

Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P. R. China

Funding

Guangzhou Science and Technology Program key projects · Department of Education of Guangdong Province · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · South China Normal University · Guangdong International Science and Technology Cooperation Project · Guangdong Province · MOE International Laboratory for Optical Information Technologies · Guangdong Provincial Engineering Technology Research Center for Transparent Conductive Materials

References (57)

Show source-provided references
1. 10.1002/adfm.20190997210.1002/adfm.201909972 ↗
2. 10.1002/adfm.20180326910.1002/adfm.201803269 ↗
3. 10.1002/aenm.20190227910.1002/aenm.201902279 ↗
4. 10.1002/aenm.20150245810.1002/aenm.201502458 ↗
5. 10.1002/adfm.20180785010.1002/adfm.201807850 ↗
6. 10.1002/cssc.20180269010.1002/cssc.201802690 ↗
7. 10.1002/aenm.20180105010.1002/aenm.201801050 ↗
8. 10.1002/solr.20190025410.1002/solr.201900254 ↗
9. 10.1016/j.joule.2018.04.01210.1016/j.joule.2018.04.012 ↗
10. 10.1039/C9TC00374F10.1039/C9TC00374F ↗
11. 10.1002/adma.20160306210.1002/adma.201603062 ↗
12. 10.1002/adfm.20170692310.1002/adfm.201706923 ↗
13. 10.1016/j.solmat.2018.02.01510.1016/j.solmat.2018.02.015 ↗
14. 10.1002/admi.20170059810.1002/admi.201700598 ↗
15. 10.1016/j.molliq.2017.06.05910.1016/j.molliq.2017.06.059 ↗
16. 10.1021/acsami.0c0563210.1021/acsami.0c05632 ↗
17. 10.1002/solr.20200032110.1002/solr.202000321 ↗
18. 10.1126/sciadv.aav892510.1126/sciadv.aav8925 ↗
19. 10.1021/jacs.8b0460410.1021/jacs.8b04604 ↗
20. 10.1038/s41566-019-0398-210.1038/s41566-019-0398-2 ↗
21. 10.1002/adma.20170539310.1002/adma.201705393 ↗
22. 10.1007/s40820-020-00425-110.1007/s40820-020-00425-1 ↗
23. 10.1021/acsami.8b2204010.1021/acsami.8b22040 ↗
24. 10.1039/C8CC05444D10.1039/C8CC05444D ↗
25. 10.1021/jacs.8b0792710.1021/jacs.8b07927 ↗
26. 10.1002/smll.20180335010.1002/smll.201803350 ↗
27. 10.1038/s41467-019-12613-810.1038/s41467-019-12613-8 ↗
28. 10.1016/j.nanoen.2021.10574210.1016/j.nanoen.2021.105742 ↗
29. 10.1039/C9NR03638E10.1039/C9NR03638E ↗
30. 10.1126/science.aaf116810.1126/science.aaf1168 ↗
31. 10.1038/s41467-018-04029-710.1038/s41467-018-04029-7 ↗
32. 10.1364/OME.9.00188210.1364/OME.9.001882 ↗
33. 10.1021/acsaem.9b0235610.1021/acsaem.9b02356 ↗
34. 10.1016/j.apsusc.2020.14579010.1016/j.apsusc.2020.145790 ↗
35. 10.1021/acsami.7b1631210.1021/acsami.7b16312 ↗
36. 10.1021/acsnano.6b0153510.1021/acsnano.6b01535 ↗
37. 10.1016/j.nanoen.2020.10503810.1016/j.nanoen.2020.105038 ↗
38. 10.1016/j.solener.2020.09.05210.1016/j.solener.2020.09.052 ↗
39. 10.1021/acsami.7b1099410.1021/acsami.7b10994 ↗
40. 10.1021/nn300486a10.1021/nn300486a ↗
41. 10.1002/adfm.20180674010.1002/adfm.201806740 ↗
42. 10.1039/C7EE02634J10.1039/C7EE02634J ↗
43. 10.1126/science.aaa272510.1126/science.aaa2725 ↗
44. 10.1126/science.aaa576010.1126/science.aaa5760 ↗
45. 10.1021/acssuschemeng.8b0069110.1021/acssuschemeng.8b00691 ↗
46. 10.1002/adfm.20150316010.1002/adfm.201503160 ↗
47. 10.1002/solr.20170007310.1002/solr.201700073 ↗
48. 10.1016/j.orgel.2017.12.00210.1016/j.orgel.2017.12.002 ↗
49. 10.1021/acsami.5b1037410.1021/acsami.5b10374 ↗
50. 10.1002/aenm.20170204910.1002/aenm.201702049 ↗
51. 10.1002/smll.20170059810.1002/smll.201700598 ↗
52. 10.1002/aenm.20150202110.1002/aenm.201502021 ↗
53. 10.1002/anie.20180001910.1002/anie.201800019 ↗
54. 10.1021/acsami.9b0953010.1021/acsami.9b09530 ↗
55. 10.1002/aenm.20170067710.1002/aenm.201700677 ↗
56. 10.1021/acsaem.0c0118410.1021/acsaem.0c01184 ↗
57. 10.1016/j.dyepig.2020.10902410.1016/j.dyepig.2020.109024 ↗