Affiliation of Author(s):材料科学与技术学院
Journal:J. Mater. Chem. A
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 a 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 method using eco-friendly N2 gas as the dopant. Both the 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. © The Royal Society of Chemistry.
ISSN No.:2050-7488
Translation or Not:no
Date of Publication:2019-01-01
Co-author:Zhai, Zihao,Chen, Jieyi,F70206594,Jiang, Ye
Correspondence Author:shl
Researcher
Supervisor of Doctorate Candidates
Main positions:江苏省真空学会常务理事-江苏省光伏科学与工程协同创新中心副理事长-南京市可再生能源学会副理事长
Other Post:亚太材料科学院院士 (2013年10月)
Gender:Male
Alma Mater:中国科学院上海冶金研究所
Education Level:With Certificate of Graduation for Doctorate Study
Degree:Doctoral Degree in Science
School/Department:College of Material Science and Technology
Discipline:Material Science. Physics
Business Address:南京航空航天大学将军路校区西区材料学院大楼D10-B317
Contact Information:18913854729
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