Transient Absorption Spectroscopy
Our open access facility offers a versatile sample range, with options for operando and spatially resolved measurements.
Newly installed in 2022, the North-East Transient Absorption Spectroscopy (TAS) Facility is a unique UK facility for TAS measurements, it being open access, and in terms of the versatility of samples that can be handled and the options for performing operando and spatially resolved measurements.
Alongside steady state optical measurements, time resolved fluorescence and vibrational spectroscopy, TAS allows the full characterisation of optically active systems. Your sample is excited with a laser pump beam of 100 fs and changes in absorbance monitored in terms of wavelength and time the full range of visible light to near IR with resolution down to 14 fs and 4 nm.
TAS allows us to probe short-lived excited state species that can represent only a small fraction of the species created upon sample photo excitation but can have a significant impact on the fate of the sample. Such species include:
- Triplets
- Photo-radicals
- Photoisomers
- Charge-transfer states
Due to the flexibility of the sample chamber and signal chopping, the facility is particularly well suited to the study of developed devices (e.g., Photovoltaic devices), thin-films, powders etc. as well as more traditional cuvette-based solution samples. The system also has a confocal microscope attachment allowing the sample to be spatially resolved.
Contact us
To request a quote, or ask us a question, you can complete our analytical services general enquiry form below.
If you’re a Newcastle University staff member or student, you can visit the internal Research and Analytical Services' intranet page.