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Open AccessArticle

Photovoltaic and Impedance Spectroscopy Study of Screen-Printed TiO2 Based CdS Quantum Dot Sensitized Solar Cells

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Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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National Institute of Laser and Optronics, Nilore, 45650 Islamabad, Pakistan
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Author to whom correspondence should be addressed.
Academic Editor: Christof Schneider
Materials 2015, 8(1), 355-367; https://doi.org/10.3390/ma8010355
Received: 18 December 2014 / Accepted: 6 January 2015 / Published: 19 January 2015
(This article belongs to the Section Energy Materials)
Cadmium sulphide (CdS) quantum dot sensitized solar cells (QDSSCs) based on screen-printed TiO2 were assembled using a screen-printing technique. The CdS quantum dots (QDs) were grown by using the Successive Ionic Layer Adsorption and Reaction (SILAR) method. The optical properties were studied by UV-Vis absorbance spectroscopy. Photovoltaic characteristics and impedance spectroscopic measurements of CdS QDSSCs were carried out under air mass 1.5 illuminations. The experimental results of capacitance against voltage indicate a trend from positive to negative capacitance because of the injection of electrons from the Fluorine doped tin oxide (FTO) electrode into TiO2. View Full-Text
Keywords: cadmium sulphide (CdS); quantum dot; solar cells; photovoltaic; impedance spectroscopy cadmium sulphide (CdS); quantum dot; solar cells; photovoltaic; impedance spectroscopy
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Atif, M.; Farooq, W.A.; Fatehmulla, A.; Aslam, M.; Ali, S.M. Photovoltaic and Impedance Spectroscopy Study of Screen-Printed TiO2 Based CdS Quantum Dot Sensitized Solar Cells. Materials 2015, 8, 355-367.

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