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Materials 2015, 8(5), 2376-2386; doi:10.3390/ma8052376

Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell Applications

1
Department of Physics and Astronomy, College of Sciences, P.O. Box 2455, King Saud University, Riyadh 11451, Saudi Arabia
2
National Institute of Laser and Optronics, Nilore, Islamabad 45650, Pakistan
*
Authors to whom correspondence should be addressed.
Academic Editor: Christof Schneider
Received: 27 January 2015 / Revised: 13 April 2015 / Accepted: 27 April 2015 / Published: 5 May 2015
(This article belongs to the Section Energy Materials)
View Full-Text   |   Download PDF [916 KB, uploaded 5 May 2015]   |  

Abstract

Quantum dot (QD) sensitized solar cells based on Hierarchical TiO2 structure (HTS) consisting of spherical nano-urchins on transparent conductive fluorine doped tin oxide glass substrate is fabricated. The hierarchical TiO2 structure consisting of spherical nano-urchins on transparent conductive fluorine doped tin oxide glass substrate synthesized by hydrothermal route. The CdS quantum dots were grown by the successive ionic layer adsorption and reaction deposition method. The quantum dot sensitized solar cell based on the hierarchical TiO2 structure shows a current density JSC = 1.44 mA, VOC = 0.46 V, FF = 0.42 and η = 0.27%. The QD provide a high surface area and nano-urchins offer a highway for fast charge collection and multiple scattering centers within the photoelectrode. View Full-Text
Keywords: hierarchical TiO2 structure; nanourchins; CdS quantum dots; FETEM; FESEM; UV-Vis spectroscopy hierarchical TiO2 structure; nanourchins; CdS quantum dots; FETEM; FESEM; UV-Vis 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

Ali, S.M.; Aslam, M.; Farooq, W.A.; Fatehmulla, A.; Atif, M. Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell Applications. Materials 2015, 8, 2376-2386.

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