Open AccessВлияние наночастиц серебра на фотодетектирующие свойства нанокомпозита TiO-=SUB=-2-=/SUB=-/оксид графена
Author(s) -
Е. В. Селиверстова,
Н. Х. Ибраев,
А. Ж. Жумабеков
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.09.49875.135-20
Subject(s) - nanocomposite , materials science , raman spectroscopy , graphene , titanium dioxide , photoelectric effect , hydrothermal circulation , absorption (acoustics) , nanoparticle , oxide , charge carrier , optoelectronics , absorption spectroscopy , photodetector , chemical engineering , nanotechnology , composite material , optics , metallurgy , physics , engineering
The effect of silver nanoparticles on the optoelectronic and photoelectric properties of a nanocomposite material based on graphene oxide (GO) and TiO2 was studied. The data of electron microscopy and Raman spectroscopy have shown that, the formation of a TiO2-GO nanocomposite material occurs during hydrothermal synthesis. The absorption spectrum of the nanocomposite is shifted to the long-wavelength region relative to the absorption of TiO2. The current–voltage characteristics of photodetector based on TiO2-GO nanocomposite films were increased by 2 and 7.5 times relative to pure titanium dioxide without and with the addition of Ag nanoparticles, respectively. The optoelectronic parameters of the devices were also increased, which is associated with growth in the mobility of charge carriers in nanocomposite films.