Assembly of CdS Quantum Dots onto Hierarchical TiO2 Structure for Quantum Dots Sensitized Solar Cell ApplicationsReportar como inadecuado




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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

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





Autor: Syed Mansoor Ali 1,* , Mohamed Aslam 1, W. A. Farooq 1, Amanullah Fatehmulla 1 and M. Atif 1,2,*

Fuente: http://mdpi.com/



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