Applied Photophysics, Leatherhead Surrey, UK
At Applied Photophysics, we are committed to progress. Everything we do is done because we believe it will make a difference, that in the hands of our customers, it will advance scientific knowledge and understanding, and have a wider societal impact. We challenge entrenched views, encourage fresh ideas and incorporate the best of them in our products.
Since its creation in 1971 by The Royal Institution of Great Britain under the leadership of Nobel Prize-winning Lord Porter, Applied Photophysics has remained at the forefront of the technologies of circular dichroism, stopped-flow kinetics and laser flash photolysis.
Quantitative Circular Dichroism: qCD
Laser Flash Photolysis
Interest in conjugated polymers used in e.g. photovoltaic cells has grown over recent years and there is considerable interest in advancing organic photovoltaic devices (OPV) by systematic optimisation of device processing conditions and development of new materials. The use of laser flash photolysis in the near infrared region allows direct monitoring of photogenerated charges.
Charge photogeneration at donor/acceptor heterojunctions is the basis of the function of organic solar cells. Extensive attempts are currently being made to improve OPVs. A clear understanding of OPVs is crucial for systematic optimisation of processing conditions and the choice and development of materials employed. A blend of P3HT and PCBM is involved in one of the highest efficiency solar cells to date. The yield and lifetime of the generated charges can be measured using transient absorbance spectroscopy.