Plasmon-enhanced optical transparency in graphene/Ag/graphene composite thin films
Abstract
This study presents a transparent conductive film (TCF) based on a graphene/Ag/graphene (G/Ag/G) sandwich structure. An enhancement in the optical transparency of Ag in the visible wavelength region was observed when the Ag layer was sandwiched between monolayer graphene sheets, attributed to plasmonic effects. The G/Ag/G composite films, with the top graphene layer p-type doped, demonstrated an optical transmittance of 90.8% at 550 nm and a sheet resistance of 130 Ω/sq. These results indicate the strong potential of G/Ag/G films for use as ultrathin, lightweight, and flexible TCFs.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (5)
Ren Kojima
Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258,
Shiguma Aoki
Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258,
Kintaro Nakazawa
Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258,
Takeshi Watanabe
Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
Shinji Koh
Department of Electrical Engineering and Electronics, College of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258,