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Article

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

by
Syed Mansoor Ali
1,*,
Mohamed Aslam
1,
W. A. Farooq
1,
Amanullah Fatehmulla
1 and
M. Atif
1,2,*
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.
Materials 2015, 8(5), 2376-2386; https://doi.org/10.3390/ma8052376
Submission received: 27 January 2015 / Revised: 13 April 2015 / Accepted: 27 April 2015 / Published: 5 May 2015
(This article belongs to the Section Energy Materials)
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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.
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

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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. https://doi.org/10.3390/ma8052376

AMA Style

Ali SM, Aslam M, Farooq WA, Fatehmulla A, Atif M. Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell Applications. Materials. 2015; 8(5):2376-2386. https://doi.org/10.3390/ma8052376

Chicago/Turabian Style

Ali, Syed Mansoor, Mohamed Aslam, W. A. Farooq, Amanullah Fatehmulla, and M. Atif. 2015. "Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell Applications" Materials 8, no. 5: 2376-2386. https://doi.org/10.3390/ma8052376

APA Style

Ali, S. M., Aslam, M., Farooq, W. A., Fatehmulla, A., & Atif, M. (2015). Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell Applications. Materials, 8(5), 2376-2386. https://doi.org/10.3390/ma8052376

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