Open AccessAn Optical Excitation Study of Pure and Ru-doped Bi12SiO20 Crystals with Graphene Coating
Author(s) -
P. M. Rafailov,
Vera Marinova,
R. Todorov,
Stefan Ivanov Boyadjiev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1762/1/012024
Subject(s) - graphene , materials science , raman spectroscopy , doping , crystal (programming language) , heterojunction , bismuth , charge carrier , electron mobility , absorption spectroscopy , optoelectronics , nanotechnology , optics , physics , computer science , metallurgy , programming language
CVD-grown graphene was transferred onto polished crystal plates of pristine and Ru-doped bismuth silicate (Bi12SiO20:Ru), which are well known inorganic materials possessing very high carrier mobility and photo conductivity. The heterostructures obtained were investigated by optical absorption and Raman spectroscopy. We examine the influence of photoinduced phenomena in the crystal substrate on the graphene layer with possible implications for optical doping of graphene trough photo-induced space-charge field.