Temperature Dependent Triplet States of Benzophenone; Spectral and Lifetime Measurements Utilising Transient Absorption Spectroscopy

Transient absorption spectroscopy and temperature-dependent measurements

In this application note, we demonstrate how transient absorption spectroscopy and temperature-dependent measurements can be employed to investigate and understand the nature of photoexcited triplet states of a molecule.

Characterising the triplet state dynamics of a molecule requires a variety of techniques such as transient absorption, photoluminescence, spectral and time-resolved measurements. The LP980 Transient Absorption Spectrometer offers all of these techniques, as well as accessories for temperature control including software-controlled cryostats. Temperature-dependent transient absorption of benzophenone reveals a dramatic change in its triplet concentration and lifetime as the temperature decreases. Such information is paramount to the design and optimisation of applications involving triplet state reactions.