Non-destructive covalent functionalization of the graphene with chromium tricarbonyl
I-Fan Hu1,2,3*, Ya-Ping Hsieh2, Randolph E. Elmquist3, Chi-Te Liang1
1Department of Physics, National Taiwan University, Taipei, Taiwan
2Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan
3National Institute of Standards and Technology, Gaithersburg, USA
* Presenter:I-Fan Hu,
In this work, we report the experimental realization of a non-destructive vapor-phase functionalization of the graphene with chromium tricarbonyl. Both CVD graphene and epitaxial graphene were used in order to prove the universal of functionalization method. With a series of detailed electrical property characterization, including the room temperature filed-effect measurements and the low-temperature magnetoresistance measurements, we guaranteed the non-destructive characteristic of the functionalization process. This work provides an ideal gateless approach for tuning the carrier density of graphene without degrading its extraordinary electrical property.

Keywords: Graphene, Graphene functionalizaiton, Graphene field effect transistor, Quantum Hall effect