File Name : scheme s1.tif

Caption : scheme s1. preparation of al-cus nanocrystals.

File Name : figure s1.tif

Caption : figure s1 eds spectra of (a) cus and (b) al-cus, the molar ratio of al: cu is 6: 10.

File Name : figure s2.tif

Caption : figure s2. sem image (a) and tem image (c) of cus; sem image (b) and tem image (d) of
al-doped cus nanocrystals.


File Name : figure s3.tif

Caption : figure s3. uv-vis-nir transmission spectra of pva, cus/pva, al-cus /pva film.