| Autor: |
Joana Farinhas, Sandra F. H. Correia, Lianshe Fu, Alexandre M. P. Botas, Paulo S. André, Rute A. S. Ferreira, Ana Charas |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Frontiers in Nanotechnology, Vol 3 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2673-3013 |
| DOI: |
10.3389/fnano.2021.635929 |
| Popis: |
Photovoltaic (PV) devices based on organic heterojunctions have recently achieved remarkable power conversion efficiency (PCE) values. However, photodegradation is often a cause of dramatic drops in device performance. The use of ultraviolet (UV)-absorbing luminescent downshifting (LDS) layers can be a mitigation strategy to simultaneously filter UV radiation reaching the device and reemit it with lower energy in the visible spectral range, matching the maximum spectral response of the PV cells and thus enabling the increase of the photocurrent generated by the cell. In this work, we report the use of a Eu3+-doped siliceous-based organic–inorganic hybrid as a coating on organic solar cells based on the PTB7-Th:ITIC bulk heterojunction with the purpose of increasing their performance. We found that the applied coatings yield a PCE enhancement of ∼22% (from 3.1 to 3.8%) in solar cells with spin-coated layers, compared with the bare solar cells, which is among the highest performance enhancements induced by plastic luminescent coatings. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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