Water-Based High Shear Exfoliated Graphene-Based Semi-Transparent Stable Dye-Sensitized Solar Cells for Solar Power Window Application

Here, we present an environmentally friendly, cost-effective, large-scale production of water-based graphene suspensions by the liquid phase high shear exfoliation method of natural graphite. The produced water-based graphene suspensions are stable for a period exceeding a year. As-prepared graphene...

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Bibliographic Details
Published in:IEEE journal of photovoltaics 2018-09, Vol.8 (5), p.1252-1258
Main Authors: Nemala, Sivasankar, Prathapani, Sateesh, Kartikay, Purnendu, Bhargava, Parag, Mallick, Sudhanshu, Bohm, Sivasambu
Format: Article
Language:English
Subjects:
Dye-sensitized solar cells
Dyes
Electrodes
Exfoliation
Fluorine
Graphene
Graphite
Heating systems
Liquid phases
Liquids
Photovoltaic cells
Platinum
Solar energy
solar power generation
Substrates
Suspensions
Tin oxides
windows
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Summary:Here, we present an environmentally friendly, cost-effective, large-scale production of water-based graphene suspensions by the liquid phase high shear exfoliation method of natural graphite. The produced water-based graphene suspensions are stable for a period exceeding a year. As-prepared graphene suspensions are used to fabricate transparent platinum-free counter electrodes, having transparency comparable with bare fluorine-doped tin oxide and thereby semi-transparent dye-sensitized solar cells (DSSCs), with ≍70% transmittance. The performance of this graphene-based semi-transparent DSSCs is tested under various power illuminations to demonstrate their use for solar power window application in building integrated photovoltaic systems. The fabricated cells were stable for more than 500 h under constant illumination with negligible efficiency drop.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2018.2858924