journal article·2019-03

Synergy Effect of Both 2,2,2‐Trifluoroethylamine Hydrochloride and SnF2 for Highly Stable FASnI3−xClx Perovskite Solar Cells

Bin‐Bin Yu, Leiming Xu, Min Liao, Yinghui Wu, Fangzhou Liu, Zhenfei He, Jie Ding, Wei Chen, Bao Tu, Yi Lin, Yudong Zhu, Xusheng Zhang, Weitang Yao, Aleksandra B. Djurišić, Jin‐Song Hu, Zhubing He

Solar RRL· Volume 3· Issue 3
Publisher page

Abstract

The environmentally friendly additive 2,2,2‐trifluoroethylamine hydrochloride (TFEACl) is used in synergy with SnF2 to enhance the efficiency and stability of FASnI3‐based solar cells. Both TFEA+ and Cl− are present in the films, but only Cl− is incorporated into the crystal lattice of the perovskite. The addition of TFEACl suppresses the segregation of SnF2, resulting in improvements in film morphology, in addition to a more favorable energy band alignment, and improved suppression of the formation of Sn4+. Consequently, reduced charge recombination and improved charge collection result in an efficiency enhancement from 3.63 to 5.30%. The stability of the devices is also significantly enhanced, with devices with TFEACl retaining over 60% of initial PCE after 350 h of light soaking in ambient, while devices without TFEACl experience failure in 120 h under the same testing condition.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Organic and Molecular Conductors Research · Conducting polymers and applications

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

Affiliations

Dr. B.‐B. Yu, L. Xu, M. Liao, Y. Wu, Zhe. He, W. Chen, B. Tu, Y. Lin, Y. Zhu, X. Zhang, Prof. Zhu. He Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG), Southern University of Science and Technology No. 1088, Xueyuan Rd., Shenzhen 518055 Guangdong China

Dr. B.‐B. Yu Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology No. 1088, Xueyuan Rd., Shenzhen 518055 Guangdong China

M. Liao, Prof. W. Yao Laboratory of Fundamental Science on Nuclear Wastes and Environmental Safety, Southwest University of Science and Technology No. 59, Qinglong Avenue, Mianyang 621010 Sichuan China

Dr. F. Liu, W. Chen, Prof. A. B. Djurišić Department of Physics, The University of Hong Kong Pokfulam Hong Kong SAR China

J. Ding, Prof. J.‐S. Hu CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Research Center for Molecular Sciences, CAS Research/Education Center for Excellence in Molecule Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China

Funding

National Natural Science Foundation of China · University of Hong Kong

References (51)

Show source-provided references
1. https://www.nrel.gov/pv/assets/images/efficiency‐chart.png accessed Jul.17 2018.
2. 10.1007/s00706-017-1933-910.1007/s00706-017-1933-9 ↗
3. 10.1038/srep0446710.1038/srep04467 ↗
4. 10.1021/acs.chemrev.6b0013610.1021/acs.chemrev.6b00136 ↗
5. 10.1039/C7TA00269F10.1039/C7TA00269F ↗
6. 10.1063/1.474888810.1063/1.4748888 ↗
7. 10.1039/C4EE01076K10.1039/C4EE01076K ↗
8. 10.1039/C5TA00190K10.1039/C5TA00190K ↗
9. 10.1038/nenergy.2016.17810.1038/nenergy.2016.178 ↗
10. 10.1002/aenm.20160113010.1002/aenm.201601130 ↗
11. 10.1021/jacs.6b1073410.1021/jacs.6b10734 ↗
12. 10.1021/jacs.7b0181510.1021/jacs.7b01815 ↗
13. 10.1002/adom.20170061510.1002/adom.201700615 ↗
14. 10.1021/acsenergylett.8b0104610.1021/acsenergylett.8b01046 ↗
15. 10.1021/acsenergylett.8b0008510.1021/acsenergylett.8b00085 ↗
16. 10.1021/acsenergylett.8b0038310.1021/acsenergylett.8b00383 ↗
17. 10.1021/acsenergylett.7b0097610.1021/acsenergylett.7b00976 ↗
18. 10.1021/acsenergylett.8b0068710.1021/acsenergylett.8b00687 ↗
19. 10.1021/acsenergylett.8b0064510.1021/acsenergylett.8b00645 ↗
20. Jokar E. · Energy Environ. Sci · 2018
21. 10.1038/s41467-017-02684-w10.1038/s41467-017-02684-w ↗
22. 10.1002/advs.20170020410.1002/advs.201700204 ↗
23. 10.1002/adma.20160696410.1002/adma.201606964 ↗
24. 10.1021/acsenergylett.7b0017110.1021/acsenergylett.7b00171 ↗
25. 10.1002/adma.20160500510.1002/adma.201605005 ↗
26. 10.1002/aenm.20170201910.1002/aenm.201702019 ↗
27. 10.1126/sciadv.170129310.1126/sciadv.1701293 ↗
28. 10.1021/jacs.7b0901810.1021/jacs.7b09018 ↗
29. 10.1021/jacs.7b0421910.1021/jacs.7b04219 ↗
30. 10.1021/acsenergylett.7b0020210.1021/acsenergylett.7b00202 ↗
31. 10.1002/adma.20140199110.1002/adma.201401991 ↗
32. 10.1002/adma.20160299210.1002/adma.201602992 ↗
33. 10.1039/C6TA08332C10.1039/C6TA08332C ↗
34. 10.1021/jacs.6b0014210.1021/jacs.6b00142 ↗
35. 10.1002/aenm.20160129710.1002/aenm.201601297 ↗
36. 10.1038/nenergy.2017.1810.1038/nenergy.2017.18 ↗
37. 10.1021/jacs.6b0833710.1021/jacs.6b08337 ↗
38. 10.1021/acsenergylett.8b0158810.1021/acsenergylett.8b01588 ↗
39. 10.1002/solr.20170022410.1002/solr.201700224 ↗
40. 10.1002/anie.20170703710.1002/anie.201707037 ↗
41. 10.1021/acsami.7b1116810.1021/acsami.7b11168 ↗
42. 10.1039/C8TA01642A10.1039/C8TA01642A ↗
43. 10.1002/aenm.20170343210.1002/aenm.201703432 ↗
44. 10.1021/acs.chemmater.6b0096410.1021/acs.chemmater.6b00964 ↗
45. 10.1021/acs.jpclett.6b0284310.1021/acs.jpclett.6b02843 ↗
46. 10.1002/adma.20180051510.1002/adma.201800515 ↗
47. 10.1002/solr.20180013610.1002/solr.201800136 ↗
48. 10.1021/jacs.5b0665810.1021/jacs.5b06658 ↗
49. 10.1039/C5CC09873D10.1039/C5CC09873D ↗
50. 10.1021/acs.jpclett.7b0066510.1021/acs.jpclett.7b00665 ↗
51. NIST Chemistry WebBook NIST Standard Reference Database Number 69 (Eds:P. J.Linstrom W. G.Mallard) Evaluated Infrared Reference Spectra National Institute of Standards and Technology Gaithersburg MD 20899 2009.