期刊
CARBON
卷 98, 期 -, 页码 484-490出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.11.020
关键词
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资金
- Spanish National Research and Development Program
- European Regional Development Fund (ERDF) [CSD2008-00068]
- Spanish Government
- ERDF
- Galician Regional Government under the Atlantic Research Center for Information and Communication Technologies (AtlantTIC)
- Junta de Castilla y Leon [VA300A12-1, VA036A12-2]
Terahertz time-domain spectroscopy has been used to probe the properties of four carbon allotropes with a sequenced c-axis stacking order: single-layer reduced graphene oxide, few-layer graphene oxide, disordered needle coke and highly organized graphite. The results obtained demonstrate a very high sensitivity to the structural characteristics of the tested samples. The multi-layer materials show the same type of spectral response with strong variations in the attenuation in the whole terahertz band depending on their constructural organization. The single-layer sample shows a distinct response where conductive effects dominate. The results obtained are consistent with theoretical investigations using semi-empirical quantum chemistry methods. (C) 2015 Elsevier Ltd. All rights reserved.
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