Open AccessResidue-free suspended graphene transferred by perforated template
Author(s) -
Sang Min Kim,
Choong-Kwang Lee,
Sung-Uk Yoon,
Kyung-Shik Kim,
Yun Huang
Publication year - 2022
Publication title -
nanotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.926
H-Index - 203
eISSN - 1361-6528
pISSN - 0957-4484
DOI - 10.1088/1361-6528/ac4664
Subject(s) - graphene , materials science , raman spectroscopy , fourier transform infrared spectroscopy , polymer , chemical engineering , transmission electron microscopy , nanotechnology , fabrication , residue (chemistry) , optoelectronics , composite material , optics , organic chemistry , medicine , physics , alternative medicine , engineering , pathology , chemistry
A residue-free transfer method for graphene is proposed in this study, especially for the fabrication of suspended structures. Using perforated polymer templates, graphene can be precisely transferred onto the specific position in the perforated target SiO 2 /Si substrates without the need for polymer removal and the subsequent thermal annealing process. The surface of the transferred graphene by the proposed method was analyzed and corroborated via Raman spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy. The results of these analyses suggest that the graphene surface has no polymeric residues resulting from the transfer process. The proposed method provides a powerful approach for the transfer of 2D materials and it enables the exploitation of their suspended structures for device applications as well as the physical characterizations without worry on the effect of contaminants.