Role of 1D metallic nanowires in polydomain graphene for highly transparent conducting films.
Upon the addition of silver nanowires (AgNWs), the electrical conductance of graphene film is improved. According to the film's optical birefringence, as shown by studies using liquid crystals (LCs), the improvements do not result from the chemical doping properties of the AgNWs; instead, they arise because the AgNWs facilitate connections among the domains in the graphene film. This is further supported by the film's Dirac point voltage, Raman spectra, and electrical resistance.
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea.
Hyung Ouk
HO
Choi
Dae Woo
DW
Kim
Seon Joon
SJ
Kim
Seung Bo
SB
Yang
Hee-Tae
HT
Jung
chemical vapor deposition; conductive films; graphene; nanowires; silver; transparent films