期刊
SCIENCE
卷 371, 期 6531, 页码 818-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abd1827
关键词
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资金
- Ministry of Science and Technology of China [2016YFA0200603]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB36020200]
- National Natural Science Foundation of China [21972129]
- Anhui Initiative in Quantum Information Technologies [AHY090000]
The study utilized STM, AFM, and TERS techniques to characterize pentacene on the Ag(110) surface, successfully correlating the structural and chemical heterogeneities of three pentacene-derivative species and providing a comprehensive solution for determining chemical structures.
The structure determination of surface species has long been a challenge because of their rich chemical heterogeneities. Modern tip-based microscopic techniques can resolve heterogeneities from their distinct electronic, geometric, and vibrational properties at the single-molecule level but with limited interpretation from each. Here, we combined scanning tunneling microscopy (STM), noncontact atomic force microscopy (AFM), and tip-enhanced Raman scattering (TERS) to characterize an assumed inactive system, pentacene on the Ag(110) surface. This enabled us to unambiguously correlate the structural and chemical heterogeneities of three pentacene-derivative species through specific carbon-hydrogen bond breaking. The joint STM-AFM-TERS strategy provides a comprehensive solution for determining chemical structures that are widely present in surface catalysis, on-surface synthesis, and twodimensional materials.
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