| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7853233 | Carbon | 2014 | 8 Pages |
Abstract
The radio-frequency, i.e. 0.5-40Â GHz, characteristics of chemical vapor deposition-grown graphene monolayer via HNO3 doping is experimentally investigated. According to the obtained results, the sheet resistance of HNO3-treated graphene decreases about half compared to bare graphene. In the case of radio-frequency characteristics, the transmission coefficient and effective conductivity of the HNO3-treated graphene are more enhanced than those of the bare graphene. Moreover, the intrinsic resistance and inductance of the HNO3-treated graphene itself show diminishing tendency with frequency increase. As a result, it is verified that the direct current as well as high frequency characteristics of graphene are improved by using the chemical doping method.
Related Topics
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Energy (General)
Authors
Hee-Jo Lee, Eunho Kim, Jaehyun Park, Wooseok Song, Ki-Seok An, Yong Seung Kim, Jong-Gwan Yook, Jongwan Jung,