hi every one, i am working on the development of luminescent material for the application of SSL. For this application i have to calculate the thermal stability and quantum efficiency of a phosphor . Please tell me how can I calculate these parameters by using PL data?
Dear colleague Mohit Manhas,
Have a nice time and good day.
You can calculate the thermal stability using one of the next techniques; DTA, DSC or TGA to study this issue. For example the DTA thermo-gram gives the four distinct temperatures; glass transition, Tg the onset of crystallization, Tc Peak of crystallization, Tp and melting point Tm. as depicted through the attached file. these 4 parameters were used to study the thermal stability, so you need to know these four values to study the thermal stability and annealing temperature according to these obtained values. Also i had attached one paper may be useful and help you.
Yours
A. El-Denglawey
the quantum efficiency of a phosphor can be obtained by the intergating sphere.
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