Abstract
A layered superlattice PMo123-DODA+ self-assembled composite film has been successfully prepared. Infrared (IR) spectra revealed that the Keggin structure characteristic of the PMo12O403- anion was preserved in the composite film. A well-ordered superlattice structure, d spacing of 2.945 nm, was identified by X-ray diffraction (XRD). The superlattice film showed good photochromic properties. On irradiation with UV light, the transparent film changed from light yellow to blue. Then, bleaching occurred when the film was in contact with ambient air or O2 in the dark. The photochromic mechanism was studied by electron spin resonance (ESR), IR spectra, and UV-Vis spectra.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
