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journal article·2021-10-08Open access

Methylammonium Triiodide for Defect Engineering of High-Efficiency Perovskite Solar Cells

Essa A. Alharbi, Anurag Krishna, Thomas P. Baumeler, Mathias Dankl, George C. Fish, Felix Eickemeyer, Olivier Ouellette, Paramvir Ahlawat, Viktor Škorjanc, Elsa John, Bowen Yang, Lukas Pfeifer, Claudia Esther Avalos, Linfeng Pan, Mounir Mensi, Pascal Alexander Schouwink, Jacques-E. Moser, Anders Hagfeldt, Ursula Rothlisberger, Shaik M. Zakeeruddin, Michael Grätzel

ACS Energy Letters· Volume 6· Issue 10
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Source abstract

Abstract

The defects present in metal halide perovskite are deleterious to both the performance and stability of photovoltaic devices. Consequently, there is an intense focus on developing defect mitigation strategies. Herein we report a facile strategy that employs methylammonium triiodide (MAI3) as an additive to the perovskite precursor solution. We examine the effect of MAI3 on the structural and optoelectronic properties by X-ray diffraction, density functional theory calculations, molecular dynamics simulations, solid-state nuclear magnetic resonance, steady-state, time-resolved photoluminescence (TRPL), and time-resolved terahertz spectroscopy (TRTS). Specifically, TRPL and TRTS show that MAI3 suppresses nonradiative recombination and increases the charge carrier mobility. As a result, the champion device shows a power conversion efficiency (PCE) of 23.46% with a high fill factor of >80%. Furthermore, these devices exhibit enhanced operational stability, with the best device retaining ∼90% of its initial PCE under 1 sun illumination with maximum power point tracking for 350 h.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties

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

Affiliations

Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

Laboratory of Photomolecular Science, Institute of Chemical Science and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland

Photochemical Dynamics Group, Institute of Chemical Sciences and Engineering, and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland

Funding

Schweizerischer Nationalfonds zur F??rderung der Wissenschaftlichen Forschung · European Union's Horizon 2020 Research and Innovation program · National Sciences and Engineering Research Council of Canada

References (43)

Show source-provided references
1. 10.1021/ja809598r10.1021/ja809598r ↗
2. 10.1038/s41586-021-03285-w10.1038/s41586-021-03285-w ↗
3. 10.1126/science.abf765210.1126/science.abf7652 ↗
4. Best Research-Cell Efficiency Chart | Photovoltaic Research | NREL. https://www.nrel.gov/pv/cell-efficiency.html (accessed 2021)
5. 10.1021/jacs.0c0956010.1021/jacs.0c09560 ↗
6. 10.1038/s41578-020-0221-110.1038/s41578-020-0221-1 ↗
7. 10.1039/C8CP00280K10.1039/C8CP00280K ↗
8. 10.1126/science.aau570110.1126/science.aau5701 ↗
9. 10.1038/s41563-018-0038-010.1038/s41563-018-0038-0 ↗
10. 10.1002/aenm.20200378510.1002/aenm.202003785 ↗
11. 10.34133/2019/847469810.34133/2019/8474698 ↗
12. 10.1002/adma.20170107710.1002/adma.201701077 ↗
13. 10.1021/acs.jpclett.0c0279110.1021/acs.jpclett.0c02791 ↗
14. 10.1002/adma.20190775710.1002/adma.201907757 ↗
15. 10.1126/sciadv.aaw254310.1126/sciadv.aaw2543 ↗
16. 10.1002/adma.20180743510.1002/adma.201807435 ↗
17. 10.1126/science.aaz369110.1126/science.aaz3691 ↗
18. 10.1016/j.nanoen.2020.10523710.1016/j.nanoen.2020.105237 ↗
19. 10.1038/s41467-019-10985-510.1038/s41467-019-10985-5 ↗
20. 10.1126/science.aba162810.1126/science.aba1628 ↗
21. 10.1038/s41565-018-0304-y10.1038/s41565-018-0304-y ↗
22. 10.1039/C5RA06849E10.1039/C5RA06849E ↗
23. 10.1021/acs.chemmater.9b0425910.1021/acs.chemmater.9b04259 ↗
24. 10.1126/sciadv.abe332610.1126/sciadv.abe3326 ↗
25. 10.1063/1.363297110.1063/1.3632971 ↗
26. 10.1038/s41566-019-0479-210.1038/s41566-019-0479-2 ↗
27. 10.1002/adma.20200008010.1002/adma.202000080 ↗
28. 10.1002/adma.1997009030810.1002/adma.19970090308 ↗
29. 10.1002/aenm.20190413410.1002/aenm.201904134 ↗
30. 10.1038/s41560-019-0400-810.1038/s41560-019-0400-8 ↗
31. 10.1039/C7TC02652H10.1039/C7TC02652H ↗
32. 10.1038/s41560-017-0060-510.1038/s41560-017-0060-5 ↗
33. 10.1038/nphoton.2008.15310.1038/nphoton.2008.153 ↗
34. 10.1063/1.282870910.1063/1.2828709 ↗
35. 10.1007/s10762-010-9682-410.1007/s10762-010-9682-4 ↗
36. 10.1088/0953-8984/21/39/39550210.1088/0953-8984/21/39/395502 ↗
37. 10.1088/1361-648X/aa8f7910.1088/1361-648X/aa8f79 ↗
38. 10.1063/5.000508210.1063/5.0005082 ↗
39. 10.1016/j.commatsci.2005.04.01010.1016/j.commatsci.2005.04.010 ↗
40. 10.1006/jcph.1995.103910.1006/jcph.1995.1039 ↗
41. 10.1016/0021-9991(77)90098-510.1016/0021-9991(77)90098-5 ↗
42. 10.1063/1.240842010.1063/1.2408420 ↗
43. 10.1063/1.32869310.1063/1.328693 ↗