We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Improving Radio Frequency Transmission Properties of Graphene via Carrier Concentration Control toward High Frequency Transmission Line Applications.
- Authors
Yang, Jae Hoon; Yang, Hyoung Woo; Jun, Byoung Ok; Shin, Jeong Hee; Kim, Seunguk; Jang, A‐Rang; Yoon, Seong In; Shin, Hyeon Suk; Park, Deoksoo; Park, Kyungho; Yoon, Duhee; Sohn, Jung Inn; Cha, SeungNam; Kang, Dae Joon; Jang, Jae Eun
- Abstract
Graphene has been gradually studied as a high‐frequency transmission line material owing to high carrier mobility with frequency independence up to a few THz. However, the graphene‐based transmission lines have poor conductivity due to their low carrier concentration. Here, it is observed that the radio frequency (RF) transmission performance could be severely hampered by the defect‐induced scattering, even though the carrier concentration is increased. As a possible solution, the deposition of the amorphous carbon on the graphene is studied in the high‐frequency region up to 110 GHz. The DC resistance is reduced by as much as 60%, and the RF transmission property is also enhanced by 3 dB. Also, the amorphous carbon covered graphene shows stable performance under a harsh environment. These results prove that the carrier concentration control is an effective and a facile method to improve the transmission performance of graphene. It opens up the possibilities of using graphene as interconnects in the ultrahigh‐frequency region.
- Subjects
CARRIER density; RADIO frequency; ELECTRIC lines; RADIO transmitters &; transmission; GRAPHENE; AMORPHOUS carbon
- Publication
Advanced Functional Materials, 2019, Vol 29, Issue 18, pN.PAG
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201808057