| Full text | |
| Author(s): |
Raphael F. Moral
[1]
;
Alden B. Hermsdorff
[2]
;
Paulo E. Marchezi
[3]
;
José C. Germino
;
Luiz G. Bonato
[5]
;
Francineide L. de Araújo
[6]
;
Ana F. Nogueira
[7]
Total Authors: 7
|
| Affiliation: | [1] Universidade de Campinas. Instituto de Química - Brasil
[2] Universidade de Campinas. Instituto de Química - Brasil
[3] Universidade de Campinas. Instituto de Química - Brasil
[5] Universidade de Campinas. Instituto de Química - Brasil
[6] Universidade de Campinas. Instituto de Química - Brasil
[7] Universidade de Campinas. Instituto de Química - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Chemical Society; v. 33, n. 8, p. 997-1007, 2022-06-15. |
| Abstract | |
Sustainable energy generation has been a growing concern worldwide due to the alarming effects of climate changes in the last few decades. In this scenario, perovskite solar cells hold great promise in contributing for a greener global energy matrix. Despite the great potential of this technology, several difficulties to deploy perovskite solar panels are yet to be overcome, being their long-term stability one of the most critical. In this sense, this work offers an alternative to improve the long-term, operational stability of the devices by passivating the CsFAMA perovskite active layer with a mixture of N-(2-aminoethyl)naphthalimide and mercaptopropionic acid. These modifications improved the perovskite and device stability under ambient conditions. The solar cells without encapsulation and with post-treatment with 5 mM modifier solution retained ca. 90% of its initial power conversion efficiency (PCE) after 500 h exposed to ambient conditions, while standard solar cells retained ca. 58%. Our approach offers a simple new method to improve the stability of perovskite solar cells using an unexplored combination of passivating molecules. (AU) | |
| FAPESP's process: | 21/13262-0 - Synthesis of Novel Perovskite Nanostructures |
| Grantee: | Luiz Gustavo Bonato |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 20/14451-8 - From small to large-area: a systematic study for the scale-up of perovskite solar cells |
| Grantee: | Francineide Lopes de Araújo |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country |
| Grantee: | Ana Flávia Nogueira |
| Support Opportunities: | Research Grants - Applied Research Centers Program |
| FAPESP's process: | 19/25765-6 - In situ experiments with synchrotron based SAXS and WAXS to probe reactions and formation mechanisms of trending (nanostructured) lead halide materials |
| Grantee: | Raphael Fernando Moral |
| Support Opportunities: | Scholarships in Brazil - Doctorate |