Open AccessElectrochromic and optical study of sol-gel TiO2-MnO films
Author(s) -
T. Ivanova,
A. Harizanova,
T. Koutzarova,
B. Vetruyen
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1492/1/012028
Subject(s) - electrochromism , materials science , sol gel , crystallization , anatase , annealing (glass) , titanium dioxide , band gap , chemical engineering , fourier transform infrared spectroscopy , thin film , nanotechnology , optoelectronics , chemistry , photocatalysis , composite material , electrode , organic chemistry , engineering , catalysis
We present a study on the structural, optical and electrochromic properties of sol-gel films of TiO 2 and TiO 2 -MnO. The XRD analyses show that the incorporation of Mn in the TiO 2 host matrix inhibits the crystallization process, as compared to single TiO 2 films, which are well crystallized in anatase phase. This conclusion is supported by FTIR analysis. Adding Mn to the TiO 2 films leads to a significant narrowing of the optical band gap. The electrochromic characteristics of TiO 2 -MnO films are better than those of the single titanium dioxide films after annealing at 300 °C.