Flexible perovskite solar cells (FPSCs) are prime candidates for applications requiring a highly efficient, low-cost, lightweight, thin, and even foldable power source. Despite record efficiencies of lab-scale flexible devices (19.5% on a 0.1 cm(2) area), scalability represents a critical factor toward commercialization of FPSCs. Large-area automized deposition techniques and efficient laser scribing procedures are required to enable a high-throughput production of flexible perovskite modules (FPSMs), with the latter being much more challenging compared to glass substrates. In this work, we introduce the combined concept of laser scribing optimization and automatized spray-coating of SnO2 layers. Based on a systematic variation of the incident laser power and a comprehensive morphological and electrical analysis of laser-based cell interconnections, optimal scribing parameters are identified. Furthermore, spray-coating is used to deposit uniform compact SnO2 films on large-area (>120 cm(2)) plastic substrates. FPSCs with spray-coated SnO2 show comparable performance as spin-coated cells, delivering up to 15.3% efficiency on small areas under 1 sun illumination. When upscaling to large areas, FPSMs deliver 12% power conversion efficiency (PCE) and negligible hysteresis on 16.8 cm(2) and 11.7% PCE on a 21.8 cm(2) active area. Our perovskite devices preserved 78% efficiency when the active area increased from 0.1 to 16.8 cm(2), demonstrating that our combined approach is an effective strategy for large-area manufacturing of perovskite devices on flexible substrates.

Taheri, B., De Rossi, F., Lucarelli, G., Castriotta, L.a., Di Carlo, A., Brown, T.m., et al. (2021). Laser-Scribing Optimization for Sprayed SnO2-Based Perovskite Solar Modules on Flexible Plastic Substrates. ACS APPLIED ENERGY MATERIALS, 4(5), 4507-4518 [10.1021/acsaem.1c00140].

Laser-Scribing Optimization for Sprayed SnO2-Based Perovskite Solar Modules on Flexible Plastic Substrates

Taheri B.;De Rossi F.;Lucarelli G.;Di Carlo A.;Brown T. M.;Brunetti F.
2021-01-01

Abstract

Flexible perovskite solar cells (FPSCs) are prime candidates for applications requiring a highly efficient, low-cost, lightweight, thin, and even foldable power source. Despite record efficiencies of lab-scale flexible devices (19.5% on a 0.1 cm(2) area), scalability represents a critical factor toward commercialization of FPSCs. Large-area automized deposition techniques and efficient laser scribing procedures are required to enable a high-throughput production of flexible perovskite modules (FPSMs), with the latter being much more challenging compared to glass substrates. In this work, we introduce the combined concept of laser scribing optimization and automatized spray-coating of SnO2 layers. Based on a systematic variation of the incident laser power and a comprehensive morphological and electrical analysis of laser-based cell interconnections, optimal scribing parameters are identified. Furthermore, spray-coating is used to deposit uniform compact SnO2 films on large-area (>120 cm(2)) plastic substrates. FPSCs with spray-coated SnO2 show comparable performance as spin-coated cells, delivering up to 15.3% efficiency on small areas under 1 sun illumination. When upscaling to large areas, FPSMs deliver 12% power conversion efficiency (PCE) and negligible hysteresis on 16.8 cm(2) and 11.7% PCE on a 21.8 cm(2) active area. Our perovskite devices preserved 78% efficiency when the active area increased from 0.1 to 16.8 cm(2), demonstrating that our combined approach is an effective strategy for large-area manufacturing of perovskite devices on flexible substrates.
2021
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01 - ELETTRONICA
English
Con Impact Factor ISI
flexible perovskite solar cells
p1-p2-p3 laser scribing
perovskite module
large-area deposition
automized spray-coating
SnO2 electron transport layer
pet/ito substrate
Taheri, B., De Rossi, F., Lucarelli, G., Castriotta, L.a., Di Carlo, A., Brown, T.m., et al. (2021). Laser-Scribing Optimization for Sprayed SnO2-Based Perovskite Solar Modules on Flexible Plastic Substrates. ACS APPLIED ENERGY MATERIALS, 4(5), 4507-4518 [10.1021/acsaem.1c00140].
Taheri, B; De Rossi, F; Lucarelli, G; Castriotta, La; Di Carlo, A; Brown, Tm; Brunetti, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/321541
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