Influence of Li+:V2O5 doping on Nb2O5 thin films electrochemical performance. (22nd September 2017)

• Record Type: Journal Article
• Authors: Azevedo, G. F.; Lemos, R. M. J.; Andrade, J.; Castagno, K. R. L.; Gundel, A.; Cholant, C. M.; Azevedo, C. F.; Pawlicka, A.; Avellaneda, C. O.
• Is Part Of: Molecular crystals and liquid crystals. Volume 655(2017)
• Page Start: 71
• Page End: 78
• Publication Date: 2017-09-22
• Subjects: Electrochromism -- thin films -- Nb2O5 -- V2O5 -- LiCF3SO3 -- sol-gel; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2017.1361296
• Languages: English
• ISSNs: 1542-1406

Abstract

ABSTRACT: Aiming to improve electrochromic properties of niobium pentoxide (Nb2 O5 ) there were synthesized new, doped with lithium trifluoromethane sulfonate salt (LiCF3 SO3 ), and vanadium pentoxide (Nb2 O5 :Li + :V2 O5 ) thin films. A study of these films focused on influence of doping on the electrochromic performance of these films. It was observed that Nb2 O5 :Li + :V2 O5 presents a reversible and fast insertion/extraction kinetics. A maximum charge density for three layers' film was −36.0 mC cm −2, and it corresponded to spectral transmission change of ΔT = 66%, i.e., variation from 80 to 20% from transparent to colored states.