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Preparation, characterisation and optimization of blocking layers for improving efficiency of dye-sensitized solar cells

Augustyniak, Mateusz 2016. Preparation, characterisation and optimization of blocking layers for improving efficiency of dye-sensitized solar cells. PhD Thesis, Cardiff University.
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Abstract

This study explored and described deposition of titanium oxide thin films as blocking layers in dye-sensitized solar cells using the pulsed laser deposition technique. This technique facilitates precise control of deposition conditions that were manipulated to prepare titanium oxide thin films. The electrical, optical and structural properties of the deposited films were investigated and their dependence on these conditions was studied. The key task of the research was to incorporate the deposited films into the structure of dye-sensitized solar cells in order to improve their efficiency that is adversely effected by electron-hole recombination at the interface of transparent conductive oxide and electrolyte. The titanium oxide thin films were successfully grown on fluorine-doped tin oxide coated glass that was used to fabricate the dye-sensitized solar cells. The photovoltaic parameters of the prepared dye-sensitized solar cells were studied using current-voltage characterization method. Influence of blocking layer deposition conditions on dye-sensitized solar cell performance was investigated. Correlation between the optical and electrical properties of deposited titanium oxide blocking layers and the performance of fabricated dye-sensitized solar cells as a function of the thin film deposition conditions was found. Based on that, region of optimal deposition conditions of this type of blocking layers for improving efficiency of dye-sensitized solar cells can be found.

Item Type: Thesis (PhD)
Status: Unpublished
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Uncontrolled Keywords: Dye-Sensitised Solar Cell; Blocking Layer; Pulsed Laser Deposition; Titanium Suboxide; TiO2; Metal Oxide Thin Film.
Last Modified: 04 Jun 2017 09:45
URI: http://orca.cf.ac.uk/id/eprint/98956

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