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Updated: Nov 1, 2025

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Visualising structural modification of patterned graphene nanoribbons using tip-enhanced Raman spectroscopy
Weitao Su1, Ali Esfandiar2, Ophélie Lancry3
1School of Sciences, Hangzhou Dianzi University, Hangzhou, 310018, China. suweitao@hdu.edu.cn and College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China.
Abstract:
Graphene nanoribbons (GNRs) fabricated using electron beam lithography are investigated using tip-enhanced Raman spectroscopy (TERS) with a spatial resolution of 5 nm under ambient conditions. High-resolution TERS imaging reveals a structurally modified 5-10 nm strip of disordered graphene at the edge of the GNRs. Furthermore, hyperspectral TERS imaging discovers the presence of nanoscale organic contaminants on the GNRs. These results pave the way for nanoscale chemical and structural characterisation of graphene-based devices using TERS.
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