Abstract
The transparent tungsten trioxide (WO3) films having nanostructured porous morphology and monoclinic crystal phase were prepared with the assistance of polyvinylpyrrolidone (PVP) and ammonium metatungstate (AMT) by spin coating and screen printing methods. By controlling the atomic ratio of pyrrolidone ring nitrogen (PRN) from PVP to W from AMT, the porous, photocatalytically active and transparent nanoparticulate films of WO3 can be synthesized. The PRN/W ratio was found to affect the crystallite size of WO3. The spin-coated WO3 photoanode prepared with the PRN/W atomic ratio of 0.25 demonstrated optimum photoelectrochemical (PEC) performance in 0.5M H2SO4 under 1 sun illumination. The enhancement can be attributed to the high crystallinity, porosity, optimum film thickness with reduced defects in the films. In contrast, the screen-printed WO3 films showed the transmittance as high as 60%. Such transparent films could be the potential candidates for use in tandem configuration for water splitting application.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
