Cited 5 time in webofscience Cited 4 time in scopus

Improving Radio Frequency Transmission Properties of Graphene via Carrier Concentration Control toward High Frequency Transmission Line Applications

Title
Improving Radio Frequency Transmission Properties of Graphene via Carrier Concentration Control toward High Frequency Transmission Line Applications
Authors
Yang, Jae HoonYang, Hyoung WooJun, Byoung OkShin, Jeong HeeKim, SeungukJang, A-RangYoon, Seong InShin, Hyeon SukPark, DeoksooPark, KyunghoYoon, DuheeSohn, Jung InnCha,SeungNamKang, Dae JoonJang, Jae Eun
DGIST Authors
Jang, Jae Eun
Issue Date
2019-05
Citation
Advanced Functional Materials, 29(18), 1808057
Type
Article
Article Type
Article
Author Keywords
amorphous carboncharge transferdopinggrapheneRF transmission line
Keywords
Amorphous carbonCharge transferDoping (additives)Electric linesGrapheneOpacityRadio transmissionRadio wavesHarsh environmentHigh carrier mobilityHigh frequency transmission linesRadio frequency transmissionRF transmissionStable performanceTransmission performanceUltra-high frequencyCarrier concentration
ISSN
1616-301X
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. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/9998
DOI
10.1002/adfm.201808057
Publisher
John Wiley & Sons Ltd.
Related Researcher
  • Author Jang, Jae Eun Advanced Electronic Devices Research Group(AEDRG) - Jang Lab.
  • Research Interests Nanoelectroinc device; 생체 신호 센싱 시스템 및 생체 모방 디바이스; 나노 통신 디바이스
Files:
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Collection:
Department of Information and Communication EngineeringAdvanced Electronic Devices Research Group(AEDRG) - Jang Lab.1. Journal Articles


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