Abstract
Silver (Ag) is a promising material for manipulation of surface plasmon polaritons (SPPs), due to its optical and electrical properties; however, the intrinsic properties are easily degraded by surface corrosion under atmospheric conditions, restricting its applications in plasmonics. Here, we address this issue via single-crystalline Ag films protected with graphene layers and demonstrate effective propagation of SPPs on the graphene-protected Ag films. Single-crystalline Ag films with atomically flat surfaces are prepared by epitaxial growth; graphene layers are then transferred onto the Ag films. The propagation lengths of SPPs on the graphene-protected Ag films are measured, and their variations under corrosive conditions are investigated. The initial SPP propagation lengths for the bare Ag films are very long (about 50 μm in the wavelength range 550-700 nm). However, the values decrease significantly (11-13 μm) under corrosive conditions. On the contrary, the double-layer-graphene-protected Ag films exhibit SPP propagation lengths of about 23 μm and retain over 90% (21-23 μm) of the propagation lengths even after exposure to corrosive conditions, guaranteeing the reliability of Ag plasmonic devices. This approach can encourage extending the application of the graphene-metal hybrid structure and thus developing Ag plasmonic devices.
| Original language | English |
|---|---|
| Pages (from-to) | 5014-5022 |
| Number of pages | 9 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2017 Feb 8 |
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Keywords
- anticorrosion
- effective propagation
- graphene
- plasmonics
- silver
- surface plasmon polaritons
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Effective Propagation of Surface Plasmon Polaritons on Graphene-Protected Single-Crystalline Silver Films. / Hong, Hyun Young; Ha, Jeong Sook; Lee, Sang-Soo; Park, Jong Hyuk.
In: ACS Applied Materials and Interfaces, Vol. 9, No. 5, 08.02.2017, p. 5014-5022.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effective Propagation of Surface Plasmon Polaritons on Graphene-Protected Single-Crystalline Silver Films
AU - Hong, Hyun Young
AU - Ha, Jeong Sook
AU - Lee, Sang-Soo
AU - Park, Jong Hyuk
PY - 2017/2/8
Y1 - 2017/2/8
N2 - Silver (Ag) is a promising material for manipulation of surface plasmon polaritons (SPPs), due to its optical and electrical properties; however, the intrinsic properties are easily degraded by surface corrosion under atmospheric conditions, restricting its applications in plasmonics. Here, we address this issue via single-crystalline Ag films protected with graphene layers and demonstrate effective propagation of SPPs on the graphene-protected Ag films. Single-crystalline Ag films with atomically flat surfaces are prepared by epitaxial growth; graphene layers are then transferred onto the Ag films. The propagation lengths of SPPs on the graphene-protected Ag films are measured, and their variations under corrosive conditions are investigated. The initial SPP propagation lengths for the bare Ag films are very long (about 50 μm in the wavelength range 550-700 nm). However, the values decrease significantly (11-13 μm) under corrosive conditions. On the contrary, the double-layer-graphene-protected Ag films exhibit SPP propagation lengths of about 23 μm and retain over 90% (21-23 μm) of the propagation lengths even after exposure to corrosive conditions, guaranteeing the reliability of Ag plasmonic devices. This approach can encourage extending the application of the graphene-metal hybrid structure and thus developing Ag plasmonic devices.
AB - Silver (Ag) is a promising material for manipulation of surface plasmon polaritons (SPPs), due to its optical and electrical properties; however, the intrinsic properties are easily degraded by surface corrosion under atmospheric conditions, restricting its applications in plasmonics. Here, we address this issue via single-crystalline Ag films protected with graphene layers and demonstrate effective propagation of SPPs on the graphene-protected Ag films. Single-crystalline Ag films with atomically flat surfaces are prepared by epitaxial growth; graphene layers are then transferred onto the Ag films. The propagation lengths of SPPs on the graphene-protected Ag films are measured, and their variations under corrosive conditions are investigated. The initial SPP propagation lengths for the bare Ag films are very long (about 50 μm in the wavelength range 550-700 nm). However, the values decrease significantly (11-13 μm) under corrosive conditions. On the contrary, the double-layer-graphene-protected Ag films exhibit SPP propagation lengths of about 23 μm and retain over 90% (21-23 μm) of the propagation lengths even after exposure to corrosive conditions, guaranteeing the reliability of Ag plasmonic devices. This approach can encourage extending the application of the graphene-metal hybrid structure and thus developing Ag plasmonic devices.
KW - anticorrosion
KW - effective propagation
KW - graphene
KW - plasmonics
KW - silver
KW - surface plasmon polaritons
UR - http://www.scopus.com/inward/record.url?scp=85012004912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85012004912&partnerID=8YFLogxK
U2 - 10.1021/acsami.6b15229
DO - 10.1021/acsami.6b15229
M3 - Article
VL - 9
SP - 5014
EP - 5022
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 5
ER -