Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 Jun 13;17(1):260-266.
doi: 10.1080/14686996.2016.1176512. eCollection 2016.

A transparent, solvent-free laminated top electrode for perovskite solar cells

Mohammed Makha  1 , Silvia Letícia Fernandes  2 , Sandra Jenatsch  1 , Ton Offermans  3 , Jürg Schleuniger  3 , Jean-Nicolas Tisserant  4 , Anna C Véron  1 , Roland Hany  1
Affiliations

A transparent, solvent-free laminated top electrode for perovskite solar cells

Mohammed Makha et al. Sci Technol Adv Mater. .

Abstract

A simple lamination process of the top electrode for perovskite solar cells is demonstrated. The laminate electrode consists of a transparent and conductive plastic/metal mesh substrate, coated with an adhesive mixture of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), PEDOT:PSS, and sorbitol. The laminate electrode showed a high degree of transparency of 85%. Best cell performance was achieved for laminate electrodes prepared with a sorbitol concentration of ~30 wt% per milliliter PEDOT:PSS dispersion, and using a pre-annealing temperature of 120°C for 10 min before lamination. Thereby, perovskite solar cells with stabilized power conversion efficiencies of (7.6 ± 1.0)% were obtained which corresponds to 80% of the reference devices with reflective opaque gold electrodes.

Keywords: 102 Porous/Nanoporous/Nanostructured materials; 209 Solar cell/Photovoltaics; 50 Energy materials; Perovskite; lamination; solar cell; transparent electrode.

PubMed Disclaimer

Figures

None
Graphical abstract
Figure 1.
Figure 1.
(a) Cross-sectional SEM image of the perovskite solar cell. For laminated devices, gold (Au) was replaced by a PET/Ag-mesh/PEDOT:PSS/sorbitol electrode. (b) Top-view SEM image of the perovskite film. (c) AFM topography of the surface of the perovskite film. (d) AFM topography of the surface of Spiro-OMeTAD coated on the perovskite layer.
Figure 2.
Figure 2.
(a) Optical confocal microscopy image of the commercial substrate. The color axis indicates the height distribution of the Ag network on PET. (b) Selected transmission spectra of the electrode substrate and the laminate electrode.
Figure 3.
Figure 3.
JV-scans (a) and corresponding IPCE curves (b) for the best-performing cell when illuminated through the FTO and the laminate electrode. Cells were scanned from forward bias to short-circuit current (reverse scan) at a scan rate of 0.1 V s−1.
See this image and copyright information in PMC

References

    1. Stranks SD, Snaith HJ. Metal-halide perovskites for photovoltaic and light-emitting devices. Nat. Nanotech. 2015;10:391. doi: 10.1038/nnano.2015.90. - DOI - PubMed
    1. Yang WS, Noh JH, Jeon NJ, et al. High-performance photovoltaic perovskite layers fabricated through intramolecular exchange. Science. 2015;348:1234. doi: 10.1126/science.aaa9272. - DOI - PubMed
    1. Jeon NJ, Noh JH, Yang WS, et al. Compositional engineering of perovskite materials for high-performance solar cells. Nature. 2015;517:476. doi: 10.1038/nature14133. - DOI - PubMed
    1. Søndergaard RR, Hösel M, Krebs FC. Roll-to-roll fabrication of large area functional organic materials. J. Polym. Sci. B: Polym. Phys. 2013;51:16. doi: 10.1002/polb.v51.1. - DOI
    1. Yang Z, Chueh C-C, Zuo F, et al. High-performance fully printable perovskite solar cells via blade-coating technique under the ambient condition. Adv. Energy Mater. 2015;5:1500328.