Pulse electrodeposition as a tool to enhance the penetration of cuprous iodide in dye-sensitized solid-state solar cells

The electrodeposition of cuprous iodide (CuI) within the pores of interconnected TiO 2 particles has been investigated using current pulse electrodeposition and continuous current electrodeposition techniques, both in the dark and under illumination. Under illumination, the solar cells fabricated us...

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Bibliographic Details
Published in:Electrochimica acta 2011-10, Vol.56 (25), p.9180-9185
Main Authors: Premalal, E.V.A., Rajapakse, R.M.G., Konno, Akinori
Format: Article
Language:English
Subjects:
Applied sciences
Collection
CONNECTORS (ELECTRICAL)
CRYSTAL GROWTH
Cuprous iodide
Dye-sensitized solid-state solar cell
DYES
ELECTRODEPOSITION
ELECTRODES
Energy
Exact sciences and technology
Illumination
IODIDES
Natural energy
PENETRATION
Photovoltaic cells
Photovoltaic conversion
Pulse electrodeposition
SOLAR CELLS
Solar cells. Photoelectrochemical cells
Solar energy
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Summary:The electrodeposition of cuprous iodide (CuI) within the pores of interconnected TiO 2 particles has been investigated using current pulse electrodeposition and continuous current electrodeposition techniques, both in the dark and under illumination. Under illumination, the solar cells fabricated using the electrodes prepared by pulse electrodeposition, provide a collection efficiency of 3.28% with N-719 dye, whereas those prepared by continuous electrodeposition give only 0.75% efficiency, both in the absence of triehylammine hydrothiocyanate (THT, a crystal growth inhibiter) and under simulated AM 1.5 illumination. The CuI films were also grown by combining pulse electrodeposition (without THT) with drop-by-drop solution casting (with THT). The cells prepared by these electrodes give an even higher collection efficiency of 3.85%, as compared with the 3.38% efficiency of films prepared by only solution casting CuI in the presence of THT. This is the first report of the use of pulse electrodeposition to prepare CuI for dye-sensitized solid-state solar cells.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2011.07.111