• 文献标题:   The Effect of Silver Nanoparticles on the Photodetecting Properties of the TiO2/Graphene Oxide Nanocomposite
  • 文献类型:   Article
  • 作  者:   SELIVERSTOVA EV, IBRAYEV NK, ZHUMABEKOV AZ
  • 作者关键词:   nanocomposite, graphene oxide, titanium dioxide, photodetector, ag nanoparticle
  • 出版物名称:   OPTICS SPECTROSCOPY
  • ISSN:   0030-400X EI 1562-6911
  • 通讯作者地址:   Buketov Karaganda State Univ
  • 被引频次:   0
  • DOI:   10.1134/S0030400X20090192
  • 出版年:   2020

▎ 摘  要

The effect of silver nanoparticles on the optoelectronic and photoelectric properties of a nanocomposite material based on graphene oxide (GO) and TiO(2)was studied. It was shown by electron microscopy and Raman spectroscopy that during hydrothermal synthesis, A TiO2-GO nanocomposite material is formed as a result of the hydrothermal synthesis, as shown by electron microscopy and Raman spectroscopy. The absorption spectrum of the nanocomposite is shifted to the long-wavelength region relative to the absorption spectrum of TiO2. The current-voltage characteristics of photodetectors based on TiO2-GO nanocomposite films without Ag nanoparticles and TiO2-GO nanocomposite films with addition of Ag nanoparticles increase relative to the current-voltage characteristics of pure titanium dioxide by factors of 2 and 7.5, respectively. The optoelectronic parameters of the relevant devices also increase, which is associated with an increase in the mobility of charge carriers in nanocomposite films.