TY  - JOUR
AU  - Buchheit, Annika
AU  - Teßmer, Britta
AU  - Muñoz-Castro, Marina
AU  - Bracht, Hartmut
AU  - Wiemhöfer, Hans-Dieter
TI  - Electrochemical Proton Intercalation in Vanadium Pentoxide Thin Films and its Electrochromic Behavior in the near‐IR Region
JO  - ChemistryOpen
VL  - 10
IS  - 3
SN  - 2191-1363
CY  - Weinheim
PB  - Wiley-VCH-Verl.
M1  - FZJ-2021-01218
SP  - 340-346
PY  - 2021
AB  - This work examines the proton intercalation in vanadium pentoxide (V2O5) thin films and its optical properties in the near‐infrared (near‐IR) region. Samples were prepared via direct current magnetron sputter deposition and cyclic voltammetry was used to characterize the insertion and extraction behavior of protons in V2O5 in a trifluoroacetic acid containing electrolyte. With the same setup chronopotentiometry was done to intercalate a well‐defined number of protons in the HxV2O5 system in the range of x=0 and x=1. These films were characterized with optical reflectometry in the near‐IR region (between 700 and 1700 nm wavelength) and the refractive index n and extinction coefficient k were determined using Cauchy’s dispersion model. The results show a clear correlation between proton concentration and n and k.
LB  - PUB:(DE-HGF)16
C6  - 33594838
UR  - <Go to ISI:>//WOS:000618705500001
DO  - DOI:10.1002/open.202000267
UR  - https://juser.fz-juelich.de/record/890810
ER  -