High-performance wide bandgap perovskite solar cells fabricated in ambient high-humidity conditions
| Autor: | Elvira Fortunato, Ugur Deneb Menda, Tomás Calmeiro, Hugo Águas, Guilherme Ribeiro, Manuel J. Mendes, Rodrigo Martins, Daniela Nunes |
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| Přispěvatelé: | DCM - Departamento de Ciência dos Materiais, CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N), UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Materials science Silicon Tandem business.industry Band gap Energy conversion efficiency Photovoltaic system chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 7. Clean energy 0104 chemical sciences chemistry Materials Science(all) Chemistry (miscellaneous) Optoelectronics General Materials Science Wafer SDG 7 - Affordable and Clean Energy 0210 nano-technology business Perovskite (structure) |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | proposal n1 952169 SFRH/BD/ 151095/2021 Lead-halide perovskite solar cells (PSCs) are currently the most promising emergent thin-film photovoltaic technology, having already reached power conversion efficiency (PCE) levels of state-of-the-art wafer-based silicon cells. The class of wide bandgap PSCs has also demonstrated high PCE values, thus becoming highly attractive for top sub-cells in tandem devices constructed with silicon or other types of bottom sub-cells. In this study, wide bandgap double-halide (Cs0.17FA0.83PbI3-xBrx) perovskite absorbers were developed with different bromine content, aiming to obtain bandgap values between 1.66 to 1.74 eV, by a glovebox-free (ambient) procedure. Low-cost inorganic materials, i.e. TiO2 and CuSCN, were used for the electron and hole transport layers, respectively. The 1.70 eV bandgap perovskite resulted in the highest reproducibility and stability (>80% initial PCE after 3500 hours) properties of the PSCs, remarkably attaining 16.4% PCE even with ambient and high humidity (∼70%) fabrication conditions. This journal is publishersversion published |
| Databáze: | OpenAIRE |
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