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School of Physical and Chemical Sciences

Time-resolved Spectroscopy

We utilise a range of experimental tools to develop novel functional nanomaterials and semiconductors predominantly for solar energy harvesting technologies. Our interest is in understanding the response of materials on the femtosecond to millisecond timescales to light absorption and the implications for material’s performance in devices like photovoltaics. Our approach is to use time-resolved laser spectroscopy techniques like transient absorption and photoluminescence spectroscopy in combination with material and device fabrication to discover new opportunities for material performance enhancement.

Our group is particularly interested in exploring new approaches to control the excited state dynamics and diffusion in organic and perovskite semiconductors, which are key processes for the function of solar energy harvesting and optoelectronic devices. We are also interested in the potential of using optical spectroscopy techniques to predict material performance. We collaborate extensively with synthetic chemists and engineers from Queen Mary, the University of Cambridge, UCL, Imperial College and Swansea University to develop new processes and materials.

Triplet Generation Dynamics in Si-and Ge-Bridged Conjugated Copolymers (

Solutionā€Processable Carbon Nanotube Nanohybrids for Multiplexed Photoresponsive Devices (

Multiphoton Absorption Stimulated Metal Chalcogenide Quantum Dot Solar Cells under Ambient and Concentrated Irradiance (

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