Concurrent Top and Buried Surface Optimization for Flexible Perovskite Solar Cells with High Efficiency and Stability
Source abstract
Abstract
Abstract Although much progress is made toward enhancing the efficiency of perovskite solar cells (PSCs), their operational reliability, particularly their mechanical stability, which is a crucial factor for flexible PSCs (f‐PCSs), has not attracted sufficient attention. The defects in the perovskite layer, especially on the top and the buried surface of the perovskite layer, can induce perovskite fracture, highly limiting the performance of f‐PSCs. Herein, a novel multifunctional organic salt, metformin hydrochloride, which can passivate cationic and anionic defects, is incorporated on both the top and buried surfaces of perovskite layer to suppress defects. As a result, a power conversion efficiency (PCE) of 24.40% for rigid PSCs and a PCE of 22.04% for f‐PSCs are achieved. Simultaneously, the device can retain 90% and 80% of the initial efficiency after 1000 h of light illumination and 10 000 bending cycles, respectively, showing excellent operational stability. This study may provide a global way to design a passivation strategy and fabricate flexible perovskite solar cells with high efficiency and stability.
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Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electrical Engineering University of South China Hengyang 421001 China
Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells Southern University of Science and Technology Shenzhen 518055 China
Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong Southern University of Science and Technology Shenzhen 518055 China
Guangdong‐Hong Kong‐Macao Joint Laboratory for Photonic‐Thermal‐Electrical Energy Materials and Devices Southern University of Science and Technology Shenzhen 518055 China
Shenzhen Putai Technology Co., Ltd Shenzhen 518110 China
Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade Taipa Macau 999078 China
Funding
National Natural Science Foundation of China · China Postdoctoral Science Foundation
References (64)
Show source-provided references
1. 10.1021/ja809598r10.1021/ja809598r ↗
2. NREL Best research‐cell efficiencies2021https://www.nrel.gov/pv/cell-efficiency.html(accessed: December 2021).
3. 10.1038/nenergy.2016.15210.1038/nenergy.2016.152 ↗
4. 10.1038/s41563-018-0071-z10.1038/s41563-018-0071-z ↗
5. 10.1021/acs.chemrev.8b0053910.1021/acs.chemrev.8b00539 ↗
6. 10.1038/nmat438810.1038/nmat4388 ↗
7. 10.1039/C9EE02391G10.1039/C9EE02391G ↗
8. 10.1016/j.joule.2019.07.02310.1016/j.joule.2019.07.023 ↗
9. 10.1002/solr.20190048510.1002/solr.201900485 ↗
10. 10.1039/C9EE03046H10.1039/C9EE03046H ↗
11. 10.1002/cssc.20200209510.1002/cssc.202002095 ↗
12. 10.1021/acsaem.8b0162310.1021/acsaem.8b01623 ↗
13. 10.1038/s41467-020-18940-510.1038/s41467-020-18940-5 ↗
14. 10.1016/j.joule.2018.04.02610.1016/j.joule.2018.04.026 ↗
15. 10.1021/acs.chemrev.8b0031810.1021/acs.chemrev.8b00318 ↗
16. 10.1039/C6EE02650H10.1039/C6EE02650H ↗
17. 10.1016/j.joule.2019.06.01110.1016/j.joule.2019.06.011 ↗
18. 10.1002/aenm.20200253610.1002/aenm.202002536 ↗
19. 10.1002/adma.20200342210.1002/adma.202003422 ↗
20. 10.1038/ncomms841010.1038/ncomms8410 ↗
21. 10.1038/s41467-018-05760-x10.1038/s41467-018-05760-x ↗
22. 10.1002/aenm.20190083410.1002/aenm.201900834 ↗
23. 10.1002/aenm.20190141910.1002/aenm.201901419 ↗
24. 10.1002/adma.20220168110.1002/adma.202201681 ↗
25. 10.1039/D0EE02164D10.1039/D0EE02164D ↗
26. 10.1039/D0TA10717D10.1039/D0TA10717D ↗
27. 10.1039/C9EE01944H10.1039/C9EE01944H ↗
28. 10.1002/adma.20180141810.1002/adma.201801418 ↗
29. 10.31635/ccschem.020.20200033510.31635/ccschem.020.202000335 ↗
30. 10.1002/adma.20200061710.1002/adma.202000617 ↗
31. 10.1002/adma.20190151910.1002/adma.201901519 ↗
32. 10.1088/2058-8585/ab5ce310.1088/2058-8585/ab5ce3 ↗
33. 10.1002/aenm.20190257910.1002/aenm.201902579 ↗
34. 10.1038/nenergy.2016.14910.1038/nenergy.2016.149 ↗
35. 10.1016/j.nanoen.2019.10432010.1016/j.nanoen.2019.104320 ↗
36. 10.1002/aenm.20200195810.1002/aenm.202001958 ↗
37. 10.1016/j.nanoen.2020.10455610.1016/j.nanoen.2020.104556 ↗
38. 10.1039/C8CS00853A10.1039/C8CS00853A ↗
39. 10.1002/adma.20190042810.1002/adma.201900428 ↗
40. 10.1039/D0EE01767A10.1039/D0EE01767A ↗
41. 10.1002/solr.20200050510.1002/solr.202000505 ↗
42. 10.1016/j.chempr.2017.05.02010.1016/j.chempr.2017.05.020 ↗
43. 10.1021/jacs.7b0143910.1021/jacs.7b01439 ↗
44. 10.1039/C8EE02252F10.1039/C8EE02252F ↗
45. 10.1002/aenm.20180120810.1002/aenm.201801208 ↗
46. 10.1016/j.joule.2019.04.00510.1016/j.joule.2019.04.005 ↗
47. 10.1039/C6EE01337F10.1039/C6EE01337F ↗
48. 10.1002/aenm.20180335410.1002/aenm.201803354 ↗
49. 10.1016/j.solmat.2020.11052710.1016/j.solmat.2020.110527 ↗
50. 10.1016/j.joule.2021.05.01310.1016/j.joule.2021.05.013 ↗
51. 10.1002/aenm.20170104810.1002/aenm.201701048 ↗
52. 10.1002/adma.20160306210.1002/adma.201603062 ↗
53. 10.1021/jacs.9b1341810.1021/jacs.9b13418 ↗
54. 10.1002/aenm.20150047710.1002/aenm.201500477 ↗
55. 10.1021/acs.chemmater.9b0319010.1021/acs.chemmater.9b03190 ↗
56. 10.1002/adma.20180140110.1002/adma.201801401 ↗
57. 10.1002/aenm.20180338410.1002/aenm.201803384 ↗
58. 10.1038/nenergy.2017.13510.1038/nenergy.2017.135 ↗
59. 10.1002/aenm.20180369910.1002/aenm.201803699 ↗
60. 10.1002/adfm.20180760410.1002/adfm.201807604 ↗
61. 10.1002/adma.20210611810.1002/adma.202106118 ↗
62. 10.1002/adma.20190440810.1002/adma.201904408 ↗
63. 10.1002/aenm.20160235810.1002/aenm.201602358 ↗
64. 10.1039/D1EE00062D10.1039/D1EE00062D ↗