IR Spectroscopy#
Part of the Electromagnetic Spectrum
- To check: []
EM Spectrum#
Infrared absorbtion#
Identify functional groups within molecules.
We used a Nicolet Nexus 670 FTIR spectrometer combined with an external mercury cadmium telluride (MCT) detector to aquire our IR spectrum.
spectrum = Intensity (y axis) vs Wavenumber (x axis)
- red-shift -> Bathochromic shift (shift to longer wavelength)
- blue-shift -> Hypsochromic shift (shift to shorter wavelength)
Ice growth and thickness measurments#
The ice films are grown by physical vapour deposition (pure or mixed).
- prior to deposition background is aquired
Note
Insert background figure
(may be can go in previous section)
Monitoring the growth#
Monocromatic light (HeNe laser with wavelength λ = 638 nm) is