Radio-frequency characteristics of graphene monolayer via nitric acid doping

Hee Jo Lee, Eunho Kim, Jaehyun Park, Wooseok Song, Ki Seok An, Yong Seung Kim, Jong Gwan Yook, Jongwan Jung

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The radio-frequency, i.e. 0.5-40 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.

Original languageEnglish
Pages (from-to)532-539
Number of pages8
JournalCarbon
Volume78
DOIs
Publication statusPublished - 2014 Nov

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Cite this

Lee, H. J., Kim, E., Park, J., Song, W., An, K. S., Kim, Y. S., Yook, J. G., & Jung, J. (2014). Radio-frequency characteristics of graphene monolayer via nitric acid doping. Carbon, 78, 532-539. https://doi.org/10.1016/j.carbon.2014.07.037