PASTEL Plateform - Fluorimetry
Name and description of the technique:
The laboratory's emission spectroscopy platform consists of a fluorimeter allowing optical emission measurements to be carried out.
Fluorimètre Varian Cary Eclipse
Type of materials/samples studied:
Samples in solution, powders
Technology(s) used:
Emission of photons. Steady-state optical measurements; 75 kW xenon pulsed source for a range 200-900nm; no sphere of integration; Several integrated monochromators and filters;
Specificities :
Temperature from 25 to 700°C; Routine device, very easy to use, but aging (2008).
Achievable expertise(s):
It is possible to carry out qualitative experiments measuring emission and excitation spectra.
Determination of emission and/or excitation spectra of new materials. Responsible person(s) to contact: Marc Lepeltier - David Kreher
Key words:
luminescence, fluorescence, phosphorescence, chromophore, photon emission, emission spectra, excitation spectra, optical properties
PASTEL platform - Spectrophotometry
Name and description of the technique:
Spectrophotometry is carried out using a spectrophotometer for the direct measurement of emission efficiencies.
Equipment(s):
HAMAMATSU Quantaurus QY, with solution holder and solids holder.
Type of materials/samples studied:
Solutions, powders, films
Technology(s) used:
Steady-state optical measurements; 3.3 inch SPECTRARON Hamamatsu integrating sphere; Excitation from 250 (or 375) to 850 nm, measurements from 200 (or 350) to 950 (or 1100) nm.
Specificities :
integrated integration phase, no need for a reference to obtain the emission efficiency.
Compact device, very easy to use, also “upgradable” (if accessories are purchased).
Precise and fast measurement, resolution < 2 nm (multi-channel detector).
Achievable expertise(s):
Determination of emission efficiencies of new materials.
Responsible person(s) to contact: - David Kreher
Keywords : Fluorescence yield, optical spectrometer