Fig. 1.
SEM images of surfaces and cross-sections of (A, B) PVA film, and (C, D) HPTS/TPB-PVA film; (E) visual appearance of the films; (F) FTIR curves of pure PVA and HPTS/TPB-PVA film; (G) XRD curves of pure PVA and HPTS/TPB PVA film.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.