Program

P.14 -- Poster, NCTP-40

Date: Monday, 27 July 2015

Time: 14h00 - 15h30

Simple model for optical modes of graphene nano ribbons

Dao Thi Thuy Nga (1), Phuong Thi Phuong Lan (2), Duong Thi Ha (2), Can Thi Thuy Thuy(2), Do Thi Nga (2), Nguyen Ai Viet (2)

(1) Bac Ninh Department of Education and Training; (2) Institute of Physics, 10 Dao Tan, Ba-Dinh, Hanoi

At present, graphene nano ribbons have drawn great attention due to many applications in nano technology, but their theory is quite complicated. We propose a simple model for approximate calculation of some main optical parameters of graphene nano ribbons. Several fitting schemes for optical transition energy versus width of graphene nano ribbons were investigated: Coulomb and Coulomb with screening forms, Pade and generalized Pade forms. The collective mechanism of pi-plasmon in graphene nano ribbons is also discussed.

Presenter: Đào Thị Thúy Nga