Title :
Optoelectronic properties of graphene silicon nano-texture
Author :
Brahmanandam, J. ; Ajmalghan, M. ; Abhilash, R.K. ; Mahapatra, D.R. ; Rahaman, M.R. ; Hegde, G.M.
Author_Institution :
Dept. of Aerosp. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
Graphene on silicon with silicon dioxide quantum dots is a promising opto-electronic material. The optical band gap and the corresponding optical conductivity are estimated using the density functional approach with the combination of molecular dynamics. The regular repeating unit cell of graphene silicon nano-texture is identified using the classical molecular dynamics simulations. Electronic calculations predict the optical band gap is around 0.2 eV and the optical conductivity is identified to be 0.3 times the quantum conductance.
Keywords :
density functional theory; graphene; molecular dynamics method; optical conductivity; semiconductor quantum dots; silicon compounds; texture; C-Si; density functional approach; graphene silicon nanotexture; molecular dynamics; optical band gap; optical conductivity; quantum conductance; silicon dioxide quantum dots; Conductivity; Electron optics; Graphene; Optical films; Photonic band gap; Silicon; Substrates; Band structure; Graphene; Optical conductivity; Silicon; Silicon dioxide;
Conference_Titel :
Emerging Electronics (ICEE), 2014 IEEE 2nd International Conference on
Print_ISBN :
978-1-4673-6527-7
DOI :
10.1109/ICEmElec.2014.7151132