BR does not like alcohol, SnO2, as far as I remember, is indifferent to it. Why is it "nano-hybrid"? Unless BR was deposited as a monolayer, both films are rather far from being "nano", and if it is a Langmuir film, you can ask directly the people intersted in Langmuir-Blodgett technics, which was highly developed way before the first "nano technologist" entered university.