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 journalArticlepeer-review

3 Citations (Scopus)


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
Publication statusPublished - 2014 Nov

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2010-0020207, 2012R1A1A2007211). K.-S. An and W.S. Song were supported by a grant (2011-0031636) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)


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