Edinburgh Instruments Ltd., Edinburgh, UK
Solar cell materials can be assessed by spectral and temporal fluorescence spectroscopy using the products offered by Edinburgh Instruments.
The energy received on earth by the sun in one hour is equivalent to the energy consumed by the world in a year. Photovoltaic solar cells convert this solar energy into electricity in a sustainable way compared to fossil fuels.
Solar cells can be made of semiconductors, polymers, dyes and phosphors. Organic as well as organic/inorganic approaches are currently followed.
Research is focussed on materials that absorb a wider part of the solar spectrum, while improving the electronic transport at a low cost. In addition, charge mobility and stability are challenges especially for dye-sensitised and perovskite solar cells.
The fluorescence emission, quantum yield and lifetime of nanoscale materials can be characterised with a range of Edinburgh Instruments’ products.
Nanoscale materials such as quantum dots, carbon nanotubes, nanoparticles and nanostructures exhibit strong spatial confinement upon photo-excitation and tuneable emission, which makes them extremely useful in photonic applications.
Emission at desired wavelengths has been widely demonstrated in the past, however research is currently focused on improving the quantum yield as well as the photo-stability and chemical stability for example in core/shell geometries. New materials are investigated in the zeroth dimension in dots, the second in sheets such as graphene, or the third in nanostructures, whereas applications from optoelectronic devices to medical diagnostics and quantum computing.
Lasers and LEDs
Fibre Optic Spectrometers