Finally, a Way to Tune Electrical Properties of Bilayer Graphene (1 of 1) (IMAGE)

American Association for the Advancement of Science (AAAS)

Finally, a Way to Tune Electrical Properties of Bilayer Graphene (1 of 1)

Caption

The band structure of a bandgap-opened bilayer graphene is shown in the upper left corner, where the trigonal warping effect results in three pockets near the edge of conduction and valence bands. Infrared light illuminates bilayer graphene and creates an exciton--a bound state of an electron and an electron hole, located mostly in the top and bottom layer of carbon atoms respectively. This material relates to a paper that appeared in the Nov. 17, 2017, issue of Science, published by AAAS. The paper, by author at institution in location, and colleagues was titled, "Tunable excitons in bilayer graphene."

Credit

Long Ju and Enrique Sahagún Alonso (Scixel)

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