| Autor: |
Ivan M. Santos, Miguel Alexandre, Valentin D. Mihailetchi, José A. Silva, Tiago Mateus, Ana Mouquinho, Jenny Boane, António T. Vicente, Daniela Nunes, Ugur D. Menda, Hugo Águas, Elvira Fortunato, Rodrigo Martins, Manuel J. Mendes |
| 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: |
2023 |
| Předmět: |
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| Popis: |
Funding Information: This work received funding from the FCT (Fundação para a Ciência e Tecnologia, I.P.) under the projects LA/P/0037/2020, UIDP/50025/2020 and UIDB/50025/2020 of the Associate Laboratory Institute of Nanostructures, Nanomodeling, and Nanofabrication—i3N, and by the projects TACIT (PTDC/NAN‐OPT/28837/2017) and FlexSolar (PTDC/CTM‐REF/1008/2020). The authors also acknowledge the support of the H2020 Solar‐ERANET program, which funded the development of the IBC cells within the framework of the BOBTANDEM project. The work was also funded by the European Union's Horizon 2020 research and innovation program under the project Synergy (H2020‐Widespread‐2020‐5, CSA), proposal n° 952169. M.A. and J.B. acknowledge funding by FCT‐MCTES through the grants SFRH/BD/148078/2019 and BD/14557/2022, respectively. Publisher Copyright: © 2023 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH. Advanced light management via front-coated photonic nanostructures is a promising strategy to enhance photovoltaic (PV) efficiency through wave-optical light-trapping (LT) effects, avoiding the conventional texturing processes that induce the degradation of electrical performance due to increased carrier recombination. Titanium dioxide (TiO2) honeycomb arrays with different geometry are engineered through a highly-scalable colloidal lithography method on flat crystalline silicon (c-Si) wafers and tested on standard planar c-Si interdigitated back-contact solar cells (pIBCSCs). The photonic-structured wafers achieve an optical photocurrent of 36.6 mA cm−2, mainly due to a broad anti-reflection effect from the 693 nm thick nanostructured coatings. In contrast, the pIBCSC test devices reach 14% efficiency with 679 nm thick TiO2 nanostructures, corresponding to a ≈30% efficiency gain relative to uncoated pIBCSCs. In addition, several designed structures show unmatched angular acceptance enhancements in efficiency (up to 63% gain) and photocurrent density (up to 68% gain). The high-performing (yet electrically harmless) LT scheme, here presented, entails an up-and-coming alternative to conventional texturing for c-Si technological improvement that can be straightforwardly integrated into the established PV industry. publishersversion inpress |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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