Optical absorption spectrum of rotated trilayer graphene

Using ab initio calculations we have studied the optical linear response of different configurations of twisted trilayer graphene systems. We have found that when one of the outer layers is rotated the system shows an angle-dependent optical spectrum as its twisted bilayer counterpart; however, in t...

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Bibliographic Details
Published inJournal of materials science Vol. 49; no. 2; pp. 642 - 647
Main Authors Correa, Julian D., Pacheco, Monica, Morell, Eric Suárez
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.01.2014
Springer
Springer Nature B.V
Subjects
Absorption spectra
Bilayers
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Graphene
Materials Science
Polymer Sciences
Rotation
Solid Mechanics
Toy industry
Visible Range
Optical Absorption Peak
Optical Absorption Spectrum
Graphene Layer
Linear Band
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Summary:Using ab initio calculations we have studied the optical linear response of different configurations of twisted trilayer graphene systems. We have found that when one of the outer layers is rotated the system shows an angle-dependent optical spectrum as its twisted bilayer counterpart; however, in this case there are two absorption peaks located in the visible range of the spectrum and one more in the intermediate infrared range for large relative rotation angles. When two layers are rotated the spectrum exhibits only two absorption peaks in the visible range revealing information about the two relative rotation angles between the layers in the structure. All these absorption peaks in the visible range shift to the intermediate infrared range for small angles.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-013-7744-4