Theory and Simulations
Functional ceramics
Batteries and Fuel Cells
Nanostructured Solar cells
- Hybrid metal oxide / polymer solar cells
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Controlling charge recombination using alumina over layer
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The Alumina coating on TiO2 nano particles in TiO2 / Polymer solar cells serves multiple functions—as physical barrier layers for charge recombination reactions to affect the photo induced charge transfer at the interface, as a means of passivation of TiO2 surface trap states, and to improve the exciton dissociation efficiency at the polymer / TiO2 interface ……… Loheeswaran et al Journal of Nanoelectronics and Optoelectronics 8, 484-488 (2013).
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Improving charge transport using nanorods
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Charge recombination in the structures containing vertically aligned ZnO nanorods is remarkably slow, with a half-life of several milliseconds, over 2 orders of magnitude slower than that for randomly oriented ZnO nano-particles. Overall power conversion efficiency of device with nanorods is over four times greater than that for a similar device based on the nanoparticle structure Ravirajan, P. et al. Journal of Physical Chemistry B 110, 7635-7639, (2006). |
- Quantum Dot Sensitised Solar cells (QDSSC)
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Insertion of cadmium sulfide (CdS) QDs at the nanocrystalline TiO2 / P3HT interface improve the efficiency of TiO2/P3HT solar cells by a factor three by broadening the quantum efficiency spectrum and controlling the recombination kinetics …….
Thanihai et. al Journal of Material Science: Materials in Electronics 26, 3558-3563, (2015). |
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