共 85 条
Tip-enhanced Raman spectroscopy of confined carbon chains
被引:6
作者:
Tschannen, Cla Duri
[1
]
Vasconcelos, Thiago L.
[2
]
Novotny, Lukas
[1
]
机构:
[1] Swiss Fed Inst Technol, Photon Lab, CH-8093 Zurich, Switzerland
[2] Inst Nacl Metrol Qualidade & Tecnol INMETRO, Mat Metrol Div, BR-25250020 Duque De Caxias, RJ, Brazil
基金:
瑞士国家科学基金会;
关键词:
SCATTERING;
NANOTUBES;
RESONANCE;
CARBYNE;
ALLOTROPE;
NANOPARTICLES;
ANTENNAS;
MODEL;
D O I:
10.1063/5.0073950
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Long linear chains of carbon encapsulated in carbon nanotubes represent the finite realization of carbyne, the truly one-dimensional carbon allotrope. Driven by advances in the synthesis of such structures, carbyne has attracted significant interest in recent years, with numerous experimental studies exploring its remarkable properties. As for other carbon nanomaterials, Raman spectroscopy has played an important role in the characterization of carbyne. In particular, tip-enhanced Raman scattering (TERS) has enabled imaging and spectroscopy down to the single-chain level. In this article, we provide a general introduction to carbyne and discuss the principles and experimental implementation of TERS as a key technology for the investigation of this material system. Within this context, the development of optical nanoantennas as TERS probes is addressed. We then summarize the latest progress in the Raman spectroscopic characterization of confined carbyne, with a focus on the findings assisted by TERS. Finally, we discuss open questions in the field and outline how TERS can contribute to solving them in future studies.
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页数:8
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