What is the right way to qualify a noun with a measurment descriptor?

Question

Suppose I have, in an experiment, a metallic film that has a thickness of 10 nanometers.

What is the right short, perhaps technical, way to qualify this film with a modifier that describes this characteristic?

(Suppose that nanometer is necessarily abbreviated as "nm").

• We used a 10 nm film.
• We used a 10-nm film.
• We used a 10 nm-film.

I have seen all the options in one place or another.

What if I want to be more specific at the price of more verbosity?

• We used a 10 nm thick film.
• We used a 10-nm thick film.
• We used a 10 nm-thick film.
• We used a 10-nm-thick film.
• We used a 10-nm thick-film.
• ... other?

What do you think is the best option for each group?