One-step polymer assisted roll-to-roll gravure-printed perovskite solar cells without using anti-solvent bathing

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Abstract

High-throughput manufacturing of hybrid halide perovskite solar cells is the next challenge before they enter the market. An anti-solvent bath is generally required to control the perovskite film assembly starting from precursors in solution. Although an anti-solvent bath has proven feasible for roll-to-roll deposition, it implies an undoubted increased complexity of the manufacturing line, meaning enhanced costs for the process itself and anti-solvent disposal. Here, we take advantage of the use of a starch polymer as a rheological modifier in perovskite precursor solutions to avoid the anti-solvent bath. Starch allows for control of the perovskite growth process in one step and reach of required viscosities for gravure-printing technique with ∼50% less of the raw precursor materials. This combined with simplified processing conditions are expected to drastically lower the costs of perovskite material production. We demonstrate that this approach can be upscaled to roll-to-roll gravure printing of flexible solar cells, reaching a maximum power conversion efficiency close to 10%.
Original languageEnglish
Article number100639
Number of pages14
JournalCell Reports Physical Science
Volume2
Issue number11
DOIs
Publication statusPublished - 4 Nov 2021
MoE publication typeA1 Journal article-refereed

Funding

F.B. gratefully acknowledges the MIUR project ?Dottorato Innovativo a Caratterizzazione Industriale (PON R&I 2014-2020)", project code DOT1712250, project no. 3. The authors gratefully acknowledge Eni S.p.A., Rome, Italy, for the financial support (contract no. 3500047928). A.R. gratefully acknowledges the project Best4U- ?Tecnologia per celle solari bifacciali ad alta Efficienza a 4 terminali per utility scale? founded by the Italian Ministry of University ad Scientific Research (MIUR) and Bando PON R&I 2014-2020 e FSC ?Avviso per la presentazione di Progetti di Ricerca Industriale e Sviluppo Sperimentale nelle 12 aree di Specializzazione individuate dal PNR 2015-2020?- decreto concessione agevolazione protocollo 991 del 21 maggio 2019 MIUR (contract number PON ARS01_00519 and CUP B88D19000160005). The work is part of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision 320168. F.B. A.G. S.C. and A.R. conceived the idea. F.B. and R.S. designed the experiments. F.B. and R.S. performed the device fabrication and J-V characterization. R.S. analyzed the solution rheology. F.B. V.H. A.S. and G.M. performed the absorption spectra, XRD, AFM, and SEM analysis. F.B. and A.R. wrote the manuscript. All the authors contributed to the data interpretation, discussion, and manuscript revision. The authors declare no competing interests. F.B. gratefully acknowledges the MIUR project “Dottorato Innovativo a Caratterizzazione Industriale (PON R&I 2014-2020)", project code DOT1712250 , project no. 3. The authors gratefully acknowledge Eni S.p.A. , Rome, Italy, for the financial support (contract no. 3500047928 ). A.R. gratefully acknowledges the project Best4U- “Tecnologia per celle solari bifacciali ad alta Efficienza a 4 terminali per utility scale” founded by the Italian Ministry of University ad Scientific Research (MIUR) and Bando PON R&I 2014-2020 e FSC “Avviso per la presentazione di Progetti di Ricerca Industriale e Sviluppo Sperimentale nelle 12 aree di Specializzazione individuate dal PNR 2015-2020”- decreto concessione agevolazione protocollo 991 del 21 maggio 2019 MIUR (contract number PON ARS01_00519 and CUP B88D19000160005 ). The work is part of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision 320168.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy
  2. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • ambient air deposition
  • antisolvent bath free
  • flexible perovskite
  • gravure printing
  • perovskite
  • perovskite polymer ink
  • photovoltaic device
  • roll-to-roll
  • scale up
  • solar cells

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