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Materials 2015, 8(1), 355-367; doi:10.3390/ma8010355

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

1
Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
2
National Institute of Laser and Optronics, Nilore, 45650 Islamabad, Pakistan
*
Author to whom correspondence should be addressed.
Academic Editor: Christof Schneider
Received: 18 December 2014 / Accepted: 6 January 2015 / Published: 19 January 2015
(This article belongs to the Section Energy Materials)
View Full-Text   |   Download PDF [855 KB, uploaded 19 January 2015]   |  

Abstract

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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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