Effects of Structure and Morphology of Hydrothermally Grown ZnO Particles on the Photovoltaic Performance of Dye Sensitized Solar Cell
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 2016, Vol 11, Issue 6
Abstract
Highly ordered microporous ZnO materials with crystalline structure were synthesized hydrothermally from three different Zn-precursorsnamely: Zinc-acetate, chloride, and nitrate. XRD investigations revealed that all the obtained powders have single phase zincite structure. The powder morphology was investigated by SEM which showed that the starting Zn-precursor affects the shape as well as the size of the obtained particles. A photoelectrodes fabricated using the three different synthesized microporous ZnO particles showed variation in photocurrent density (Jsc) dye loading and hence the efficiency with variation in structure texture, morphology and particle size. DSSC built with photoelectrodes made from Zn-acetate has the highest efficiency (5.4%) which is attributed to having lowest particle size and largest surface area available for dye loading. This increases light harvesting at the photoelectrode which in turn increases short circuit current density. On the other hand, the lowest current density (5.65mA/cm2) is obtained for DSSC with photolelctrodes made from Zn-nitrate.
Authors and Affiliations
Amal Mahmoud Alkahlout
Keywords
Related Articles
- EP ID EP653251
- DOI 10.24297/jap.v11i5.363
- Views 72
- Downloads 0
Magnetic Field Mental Representations of 15-16 Year Old Students
The study of students mental representations of Natural Sciences concepts and phenomena constitutes a central part of Physics Education research, as they play a decisive role in teaching. In the study presented here, we...
Synthesis and Structural Characteristics of Semi-Synthetic Biopolymer Blends Based on Polyvinyl Alcohol, Starch and Chitosan
Structural and optical studies in combination with surface morphology investigations were accomplished for blend sample (70/30)wt% PVA/Starch in addition to other samples of the same composition containing added pre-calc...
Properties of signature partner superdeformed bands in mercury nuclei
The properties of superdeformed (SD) bands of five pairs signature partners in mercury nuclei have been systematically analyzed in framework of four parameters formula including higher order terms of Bohr-Mottelson colle...
On the Zitterbewegung Transient Regime in a Coarse-Grained Space-Time
In the present contribution, by studying a fractional version of Diracs equation for the electron, we show that the phenomenon of Zitterbewegung in a coarse-grained medium exhibits a transient oscillatory behavior, rathe...
Intrinsic Characteristics of Quasars Redshifts
Using Sloan Digital Sky Survey SDSS catalog, some intrinsic characteristics of Quasars (10,000 points) are developed of these are the strong correlations between redshifts and other parameters, e.g. combined magnitude, l...