What are the best solvents for coating ETL or HTL metal oxide nanoparticles thin films in perovskite solar cells?

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Talha Nisar

Use Hansen solubility parameters to get best solvent for your compound.

https://hansen-solubility.com/

Rakesh Sonker

The best solvent for perovskite precursor solution contained a mixture of MAI and PbI2 (1 : 1, molecular ratio) in anhydrous DMF : DMSO 9 : 1 (v/v).

Michael Stringer

What metal oxides would you like to deposit?

I would suggest a NiO HTL and a SnO2 or TiO2 ETL.