Jump to main content
Jump to site search


Direct Growth of Nitrogen-Doped Graphene Films on Glass by Plasma-Assisted Hot Filament CVD for Enhanced Electricity Generation

Abstract

Nitrogen (N) doping is an efficient way to modulate the properties of graphene. The reported chemical vapor deposition (CVD) processes for synthesizing N-doped graphene mostly involve metal catalyst and ammonia (NH3) dopant. However, the inevitable metal residual and toxicity of NH3 would significantly hinder its practical applications. In this paper, for the first time, metal-free synthesis of N-doped graphene films on glass was achieved through a plasma-assisted hot filament CVD (HFCVD) method using eco-friendly N2 gas as dopant. Both hot filament and plasma source were proven to be essential for growing N-doped graphene of preferable quality. By adjusting the N2 flow, the N content, transmittance and electrical properties of graphene films could be facilely modulated. Furthermore, it was demonstrated that the electrical voltage induced by dropping ion droplets on graphene glass was significantly improved from 50 mV to 320 mV through N doping, exceeding those of reported graphene based electricity generators. This improvement was attributed to the higher surface potential of N-doped graphene glass compared to the pristine ones, as revealed by Kelvin probe force microscopy. The present work provides a promising strategy for direct synthesis and expands applications of N-doped graphene glass for high-efficiency energy harvesting.

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Feb 2019, accepted on 08 Apr 2019 and first published on 10 Apr 2019


Article type: Paper
DOI: 10.1039/C9TA01768B
Citation: J. Mater. Chem. A, 2019, Accepted Manuscript

  •   Request permissions

    Direct Growth of Nitrogen-Doped Graphene Films on Glass by Plasma-Assisted Hot Filament CVD for Enhanced Electricity Generation

    Z. Zhai, H. Shen, J. Chen, X. Li and Y. Jiang, J. Mater. Chem. A, 2019, Accepted Manuscript , DOI: 10.1039/C9TA01768B

Search articles by author

Spotlight

Advertisements