Interlayer non-coupled optical properties for determining the number of layers in arbitrarily stacked multilayer graphenes

Autor:	Alexander E. Mag-isa, Jae-Won Jang, Hak-Joo Lee, Yun Hwangbo, Jae-Hyun Kim, Choong-Kwang Lee, Soon-Bok Lee, Seong Su Kim
Rok vydání:	2014
Předmět:	Materials science Graphene business.industry Stacking General Chemistry Trigonal crystal system Laser law.invention Wavelength symbols.namesake Optics law Microscopy symbols Optoelectronics General Materials Science Graphite business Raman spectroscopy
Zdroj:	Carbon. 77:454-461
ISSN:	0008-6223
DOI:	10.1016/j.carbon.2014.05.050
Popis:	We demonstrate a simple and easy technique to reliably count the number of layers in graphenes with stacking faults. Using lasers with wavelengths of 514 and 633 nm, the optical transmittances of multilayer graphene with Bernal, rhombohedral and artificial stacking orders were systematically measured depending on the number of layers. It was found that the optical transmittance of the multilayer graphene is linearly proportional to the number of layers up to 7 regardless of its stacking order. Measurement of optical transmittance can be a useful approach to reliably determine the number of layers in multilayer graphene, thus aiding investigation of its layer-dependent properties and applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8aabffb0878600b8e12c1747bdf1012a https://doi.org/10.1016/j.carbon.2014.05.050 Zobrazit plný text záznamu Full Text from ScienceDirect