Polarization dependence of photocurrent in a metal-graphene-metal device

Kim, Minjung; Yoon, Ho Ang; Woo, Seungwoo; Yoon, Duhee; Lee, Sang Wook; Cheong, Hyeonsik

doi:10.1063/1.4745787

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Polarization dependence of photocurrent in a metal-graphene-metal device

Kim, Minjung;
Yoon, Ho Ang;
Woo, Seungwoo;
Yoon, Duhee;
Lee, Sang Wook;
... Cheong, Hyeonsik

Citations

WEB OF SCIENCE

20

Citations

SCOPUS

20

초록

The dependence of the photocurrent generated in a Pd/graphene/Ti junction device on the incident photon polarization is studied. Spatially resolved photocurrent images were obtained as the incident photon polarization is varied. The photocurrent is maximum when the polarization direction is perpendicular to the graphene channel direction and minimum when the two directions are parallel. This polarization dependence can be explained as being due to the anisotropic electron-photon interaction of Dirac electrons in graphene. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4745787]

키워드

PHOTORESPONSE; MOBILITY

제목: Polarization dependence of photocurrent in a metal-graphene-metal device

저자: Kim, Minjung; Yoon, Ho Ang; Woo, Seungwoo; Yoon, Duhee; Lee, Sang Wook; Cheong, Hyeonsik

DOI: 10.1063/1.4745787

발행일: 2012-08-13

유형: Article

저널명: Applied Physics Letters

권: 101

호: 7