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.
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Showing 1 to 10 of 10 for “"Photoactive materials"”.
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DESIGN, SYNTHESIS, AND CHARACTERIZATION OF NANOCOMPOSITES TO IMPROVE THE PERFORMANCE OF PHOTOVOLTAIC CELLS
… for the photovoltaic (PV) devices. Photovoltaic materials utilized in our studies were synthesized using simple and inexpensive methods. The material properties were tailored and optimized to improve the optical absorption and charge transport properties. The PV cells fabricated with these …
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Copper(I) phenanthroline complexes and supramolecular systems containing fullerenes: Photophysics, photochemistry and potential applications in sustainable energy technologies.
… work was motivated by the search for efficient photoactive materials to be employed in the context of the energy problem: materials to be utilized in energy efficient devices and in the production of renewable electricity and fuels. We presented a new class of copper complexes, that could find …
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Band Gap Engineering Of Titania Systems Purposed For Photocatalytic Activity
… a viable alternative to other contemporary photoactive materials exhibiting band gaps better suited for the solar spectrum, then the band gap must be subsequently reduced. To lower the energy needed for electronic excitation, both transition metals and non-metals have been extensively …
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Fabrication of solution-processed photoactive polymer- and halide perovskite-based solar cells
In the current work, different architectures and photoactive materials have been investigated in order to fabricate low-temperature solution-processed solar cells using dip and spin coating methods. Inverted bulk heterojunction structure has been utilised in fabrication of polymer solar cells using …
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Optical Characterisation of Strain and Defects in 2D Photonic Materials
… strain and defects in two-dimensional photonic materials? To this end, we open with a review of current strategies in strain engineering, its fundamental consequences on electronic, optical, and magnetic properties, and the state-of-the-art applications of this technology in achieving …
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Towards Self-assembling Multichromophoric Materials for Organic Semiconductors
… are generally lightweight, flexible materials that can be solution processed. These properties make them an economical alternative to inorganic semiconductors, as they can be more easily manufactured and integrated into existing infrastructure. However, organic electronic devices have …
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Biologically-templated metal oxide and metal nanostructures for photovoltaic applications
… and photonic systems, the organization of materials at the nanoscale is critical. Specifically, in nanostructured heterojunction solar cells, active materials with high surface area and continuous shapes tend to improve charge transport and collection, and to minimize recombination. …
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Experimental investigation of photocatalytic hydrogen production with boron-doped TiO2 and multi-walled carbon nanotubes-TiO2
This thesis investigates photocatalytic hydrogen production by performing an experimental study using a small-scale photochemical cell which splits water to hydrogen and oxygen by UV light irradiated boron-doped TiO2 and carbon nanotube-TiO2 semiconductor photoelectrodes. The average current …
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Synthesis and Characterisation of Layered Double Hydroxides (LDHs) Using Red Mud and their Environmental Applications
… of waste reduction. Utilisation of waste materials therefore present twofold merits: (1) minimise waste disposal, (2) serve as alternative resources. Bauxite residue, also known as red mud (RM), the aluminium industry’s largest solid waste stream, is the by-product from the Bayer process …