How Can I Obtain Thin Films for DSC Analyses of P3HT PCBM?

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To perform DSC analyses on a P3HT:PCBM film, it is suggested to spin coat the material onto silicon or silicon oxide wafers, allowing for easier handling and analysis. Drop casting may not yield the desired structural integrity needed for accurate results. Including the substrate in the DSC analysis is also a possibility, but the substrate's thermal properties may differ significantly from those of the polymers. Ensuring the substrate is solid is crucial for reliable data. Proper preparation of the sample is essential for effective DSC measurements.
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Hi

I want to do DSC analyses of P3HT PCBM film (active layer of the solar cell), but I'm not sure how to obtain that thin layer separately from the substrate. You know that the containers for DSC are very small.
I tried with drop casting but I think it's not the best way because I don't have the same structure as for the solar cell.

Could anyone help me?

Thanks
 
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you could just include the substrate. Is it a solid substrate? it probably won't react near the same temperatures as the polymers.
Or you could spin coat p3htpcbm on si or siox wafers and run DSC on wafer chips.
 

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