AuCl3 doping-induced conductive unstability for CVD-grown graphene on glass substrate

Jiaqing Wang; Xianming Liu; Xueying Cao; Peng Zhang; Xiaohua Lei; Weimin Chen

doi:10.1117/12.2271757

8 September 2017 AuCl₃ doping-induced conductive unstability for CVD-grown graphene on glass substrate

Jiaqing Wang, Xianming Liu, Xueying Cao, Peng Zhang, Xiaohua Lei, Weimin Chen

Proceedings Volume 10357, Spintronics X; 103573F (2017) https://doi.org/10.1117/12.2271757
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

Abstract

Graphene is a candidate material for next-generation high performance transparent conducting film (TCF) to replace indium tin oxide (ITO) materials. However, the sheet resistance of large area graphene obtained by the chemical vapor deposition (CVD) method is higher than other kinds of TCFs. The main strategies for improving the electrical conductivity of graphene films have been based on various doping treatments. AuCl₃ is one of the most effective dopants. In this paper, we investigate the influence of AuCl₃ doping on the conductive stability of CVD-grown graphene. Large area graphene film synthesized by CVD and transferred to glass substrates is taken as experimental sample. AuCl₃ in nitromethane is used to dope the graphene films to improve the electrical conductivity. Another sample without doping is prepared for comparison. The resistances of graphene under periodic visible light irradiation with and without AuCl₃ doping are measured. Results show that the resistances for all samples increase exponentially under lighting, while decrease slowly in an exponential form as well after the light is switched off. The relative resistance changes for undoped and doped samples are compared under 445nm light irradiation with 40mW/cm², 60mW/cm², 80mW/cm², 100mW/cm² in atmosphere and vacuum. The change rate and degree for doped graphene are greater than that of undoped graphene. It is evident from the experimental data that AuCl₃ doping may induce conductive unstability for CVD-grown graphene on glass substrate.

Citation Download Citation

Jiaqing Wang, Xianming Liu, Xueying Cao, Peng Zhang, Xiaohua Lei, and Weimin Chen "AuCl₃ doping-induced conductive unstability for CVD-grown graphene on glass substrate", Proc. SPIE 10357, Spintronics X, 103573F (8 September 2017); https://doi.org/10.1117/12.2271757

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available