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Materials and Devices for Photoelectrochemical and Photocatalytic Water Splitting

Carmichael, P; (2016) Materials and Devices for Photoelectrochemical and Photocatalytic Water Splitting. Doctoral thesis , UCL (University College London). Green open access

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Abstract

This thesis is concerned with the development of materials and devices for photo-driven water splitting. In the introductory chapter, a comprehensive review of photo-driven water splitting is given and the concept of device design is investigated. Three different systems for photo-driven water splitting were then explored over three experimental chapters. The first experimental chapter explores the application of titanium dioxide and anion-doped titanium dioxide in a water splitting photodiode. Non-doped, B-doped and B,N-doped TiO2 films deposited using atmospheric pressure chemical vapour deposition (APCVD) on steel and fluorine doped-tin oxide substrates were investigated. The physical properties and photocatalytic water splitting activities of the films were then compared. In the second experimental chapter of this thesis, the application of hematite in a PV/ PEC tandem device is explored. Hematite films were deposited using a low-temperature CVD process onto triple junction solar cells. The tandem device was then assessed for its solar-to-hydrogen efficiency using photoelectrochemical methods. The final experimental chapter explores a relatively neglected III-V semiconductor, boron phosphide. BP powders were synthesised using a metathesis reaction and their photocatalytic water reduction activity assessed. The thesis concludes with a summary of key findings of the experimental work conducted along with potential avenues for further research.

Type: Thesis (Doctoral)
Title: Materials and Devices for Photoelectrochemical and Photocatalytic Water Splitting
Event: UCL (University College London)
Open access status: An open access version is available from UCL Discovery
Language: English
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/1478079
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