Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Photoelectrochemical cells"”.
-
Layer-by-layer assembly of conducting membranes for photoelectrochemical cells
… above 0.1 mS/cm are highly desirable for photoelectrochemical cell membrane applications. Mixed conducting polymer composite PEDOT:sPPO was incorporated into LbL films and the composition ratio of the film components was varied to generate a series of films with tunable transparency and …
-
Tailored diketopyrrolopyrrole-based organic dyes in photoelectrochemical cells for solar fuel synthesis
… energy to chemical feedstocks in dye-sensitised photoelectrochemical cells functionalised with molecular catalysts offers an attractive route to mitigate the current energy crisis and reduce global CO₂ emissions. However, most reports currently focus on precious metal-based light absorbers, thus …
-
Electrodeposition and characterization of metals and metal oxides for energy conversion and storage
… thin films applicable to solar water splitting cells. Paper I describes the synthesis of cobalt hydroxide, ß-Co(OH)<sub>2</sub>, by electrochemically reducing tris(ethylenediamine)cobalt(III) in alkaline solution. Paper II presents a scheme to convert the ß-Co(OH)<sub>2</sub> to CoOOH and …
-
Commercialization potential of dye-sensitized mesoscopic solar cells
… growing energy market. Dye-sensitized solar cells (DSCs) are photoelectrochemical cells which mimic the natural photosynthesis process to generate solar electricity. Typically, a monolayer of dye sensitizer molecules is anchored onto a semiconductor mesoporous film such as TiO₂ to generate …
-
Atomic layer deposition and electrochemical characterization of TiO2 as a potential candidate for a photoanode protective layer
… Solar water splitting using semiconductor photoelectrochemical cells has long been viewed as a potential means of large-scale H2 production from renewable resources. A study was carried out to test the corrosion resistance performance of thin TiO2 layers deposited by means of atomic layer …
-
Investigation of a novel high temperature solid oxide electrolyzer for solar hydrogen production
… proposes and investigates a new generation of photoelectrochemical cells for solar hydrogen production based on high temperature Solid Oxide Electrolysis Cells. Therefore, a set of experiments are designed to develop and select the most promising materials and configurations. Furthermore, the …
-
Solar Driven Hydrogen Generation with Dye-Sensitised CuCrO2 Photocathodes
… Inspired by natural processes, dye-sensitised photoelectrochemical cells provide a platform for H2 generation from water. Fuel-forming photocathodes are currently limited by the small range of wide-bandgap p-type semiconductors available. The majority of previous reports have employed NiO, …
-
THE MODIFICATION OF ELECTROCHEMICAL AND PHOTOELECTROCHEMICAL PROPERTIES IN THIN FILMS OF TRI- AND TETRAVALENT METAL PHTHALOCYANINES
… and a variety of electrochemical and photoelectrochemical techniques. All four systems behaved in a manner similar to a p-type semiconductor when prepared at rapid rates (10-20 A/min) on gold substrates. In the dark, for contacting redox couples with Eᵒ’ values negative of +0.6V, the …
-
Design, Synthesis and Spectroscopy of Highly Absorptive Chromophores Based on the Bis(tridentate)metal-ethyne-(porphinato)metal Molecular Framework for Solar Energy Conversion
… applications that include dye-sensitized solar cells, photoelectrochemical cells, and photo-redox catalysis. In this dissertation, the design, synthesis and spectroscopy of a series of different highly absorptive chromophoric systems based on the bis(tridentate)metal-ethyne-(porphinato)metal …
-
Molecular Hybrid Photocathodes Based on Silicon for Solar Fuel Synthesis
… the development of photocathodes for the use in photoelectrochemical cells is an attractive approach for the storage of solar energy in the form of a chemical energy carrier (e.g. H$_{2}$ and CO$_{2}$-reduction products from H$_{2}$O and CO$_{2}$). However, molecular catalyst-based photocathodes …
-
Advanced photoanodes for photoassisted water electrolysis
… as a highly promising photoanode candidate for photoelectrochemical cells. While significant improvements in its performance have recently been achieved, it remains unclear why the maximum photocurrents still remain well below their theoretical predictions. This study investigates the defect …
-
Nanostructured nitrogen and carbon codoped TiO2 thin films: synthesis, structural characterization and optoelectronic properties
… applications like photocatalysis, sensors, solar cells, and memory devices because it is inexpensive, abundant, nontoxic and stable in aqueous solution. Another exciting application where TiO 2 has the potential to be a very useful catalyst is the clean hydrogen generation using solar radiation. …
-
Experimental and computational approach to investigating charge transfer across semiconductor surfaces
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2017-09-29 without embargo terms
-
SOLAR ENERGY HARVESTING WITH PHOTOSYNTHETIC PIGMENT-PROTEIN COMPLEXES
Photosynthesis, a process by which plants and algae convert solar energy, water, and carbon dioxide into biomass, is a key player that sustains nearly every form of life on earth. Central to this process are the photosynthetic pigment-protein complexes that transduce sunlight into biologically …