[labnetwork] Evaporating Barium and Cesium

[Dr. Aamer Mahmood]

Hi all,
We have a user request for deposition of Barium from BaO powder using evaporation. The user is not too particular about the stoichiometry of the deposited film - both Ba or BaO or a mixture thereof are acceptable at this stage. I will try to make pellets out of the powder before we evaporate.
I wanted to run it by the labnetwork community to see if there're particular things to be careful about e.g.
1)      Should we use e-beam or thermal evaporation technique?
2)      What kind of boat/crucible material should be used?
3)      Any other important observations.

Finally, we also need to evaporate Cesium from a compound like CsF or CsNO3. Any input on evaporating Cesium from these or any other preferred compounds would be very useful.
Thanks.

--
Aamer Mahmood
Senior Scientist
Qatar Environment and Energy Research Institute, Qatar Foundation
Doha, Qatar
Tel: +974 44548132 (work)

www.qeeri.org.qa




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