What is the best method to preserve and protect semiconducting polymers from de-doping due to air and humidity before conductivity measurements?
I would put the polymer in a dedicated chamber with air replaced by dried nitrogen, or better, by noble gas, i.e. argon. The best protection is to put it inside a vacuum chamber, but the polymer may degas causing some changes to the polymer itself. Some dedicated pieces of optics or hygroscopic media are protected this way.
Best regards.
Zeggagh Khaled Can you apply an encapsulation layer to your polymer so that it won't directly interact with the ambient environment?
Adam Weilding.Thank you for your answer ,yes I can do encapsulation of semi-conducting polymer, but the problem is that encapsulation affects the physico-chemical properties of semi-conducting polymer, including their conductivity ?
Put your sample inside an oven. Set the temperature below the glass transition of the polymer.
Zeggagh Khaled Ahh I see. I used to do something similar and encapsulate with something that was relatively inert. But if it affects the performance I see how that could be a problem. The nice thing with encapsulation is it makes the sample much more robust and easier to reproduce than general storage.
Good Luck!
Dear Panagiotis Michael Mougoyannis. thank you for your reply. Yes, I put my samples in the conventional oven without applying vacuum. Is it normal ?
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