Graphene-based large area dye-sensitized solar cell modules

Simone Casaluci; Mauro Gemmi; Vittorio Pellegrini; Aldo Di Carlo; Francesco Bonaccorso

doi:10.1039/C5NR07971C

Graphene-based large area dye-sensitized solar cell modules

Simone Casaluci,^a Mauro Gemmi,^b Vittorio Pellegrini,^c Aldo Di Carlo^a and Francesco Bonaccorso*^c

* Corresponding authors

^a CHOSE – Center for Hybrid and Organic Solar Energy, Dept. Electr. Eng. University of Rome “Tor Vergata”, via del Politecnico 1, Rome, Italy

^b Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy

^c Istituto Italiano di Tecnologia, Graphene Labs, Via Morego 30, 16163 Genova, Italy
E-mail: francesco.bonaccorso@iit.it

Abstract

We demonstrate spray coating of graphene ink as a viable method for large-area fabrication of graphene-based dye-sensitized solar cell (DSSC) modules. A graphene-based ink produced by liquid phase exfoliation of graphite is spray coated onto a transparent conductive oxide substrate to realize a large area (>90 cm²) semi-transparent (transmittance 44%) counter-electrode (CE) replacing platinum, the standard CE material. The graphene-based CE is successfully integrated in a large-area (43.2 cm² active area) DSSC module achieving a power conversion efficiency of 3.5%. The approach demonstrated here paves the way to all-printed, flexible, and transparent graphene-based large-area and cost-effective photovoltaic devices on arbitrary substrates.

This article is part of the themed collection: Editor’s Choice: Making sense of nanosensors and devices

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https://doi.org/10.1039/C5NR07971C

Article type

Paper

Submitted

11 Nov 2015

Accepted

05 Feb 2016

First published

05 Feb 2016

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Nanoscale, 2016,8, 5368-5378

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Graphene-based large area dye-sensitized solar cell modules

S. Casaluci, M. Gemmi, V. Pellegrini, A. Di Carlo and F. Bonaccorso, Nanoscale, 2016, 8, 5368 DOI: 10.1039/C5NR07971C

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Graphene-based large area dye-sensitized solar cell modules

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