• 文献标题:   Modification of graphene oxide films by radiofrequency N-2 plasma
  • 文献类型:   Article
  • 作  者:   NEUSTROEV EP, BURTSEVA EK, SOLOVIEV BD, PROKOPIEV AR, POPOV VI, TIMOFEEV VB
  • 作者关键词:   graphene oxide, plasma treatment, functionalization, nitrogen, currentvoltage characteristic, optical propertie
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   North Eastern Fed Univ
  • 被引频次:   5
  • DOI:   10.1088/1361-6528/aaabe3
  • 出版年:   2018

▎ 摘  要

The effect of treatment in nitrogen plasma on the properties of partially reduced graphene oxide (rGO) was studied. A comparison is made between two different sample locations in the reaction chamber. It is shown that in the case when rGO films were turned towards the inductor of the plasma system, the etching rate is much higher. Effective nitrogen functionalization of rGO was established in the second position, when the rGO films were turned in the opposite direction. In this case, the nitrogen content increases to 5 at% of the initial value. The change in the current-voltage characteristics is observed under illumination, which is independent of the wavelength. On and off daylight changes the resistance to 30% of the initial value. The magnitude of the photocurrent increases depending on the applied voltage. The effect is most noticeable for thin rGO films 10-15 nm in thickness.