Theoretical investigation of effect of graphene on near-field thermal radiation = 그래핀이 근접장 복사열전달에 미치는 영향 분석

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 191
  • Download : 0
The present work describes a theoretical investigation of the near-field thermal radiation be-tween semi-infinite media covered with a monolayer of graphene. Doped Si, SiC-based metamaterial, and SiC are used as the substrate medium. It is found that the radiative heat flux can be either enhanced or suppressed by introducing graphene layer. Given that the permittivity of doped Si depends on doping concentration, the mechanism of the enhancement and the reduction of heat flux by insertion of graphene can be explored through varying the permittivity of doped Si substrate. Graphene can enhance the heat flux if it matches resonance frequencies of surface polaritons at vacuum-source and vacuum-receiver interfaces. Further, the heat flux significantly increases if original substrate does not support surface polaritons. Although graphene rarely affects the magnetic surface polaritons of SiC-based metamaterial, it enhances the heat flux through the interaction with the electric surface polaritons of the substrate. The results obtained in this dissertation provide an important guideline into enhancing and suppressing the near-field thermal radiation between semi-infinite media.
Advisors
Lee, Seung-Seobresearcher이승섭Lee, Bong-Jae이봉재
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2014
Identifier
568808/325007  / 020123574
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2014.2, [ 67 p. ]

Keywords

Graphene; Surface polaritons; 근접장 복사열전달; 그래핀; Near-field thermal radiation; 표면 폴라리톤

URI
http://hdl.handle.net/10203/197556
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568808&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0