Title
Investigation of the optical absorption in Si/SiO2 superlattice for the application to solar cells
Author
Shigeru Yamada, Makoto Konagai, Shinsuke Miyajima
Year
2016
Journal
Japanese Journal of Applied Physics
Abstract
The optical properties of the Si/SiO2 superlattice were investigated on the basis of the optical absorption coefficient. We found that the optical bandgap can be tuned from 1.2 to 2.1 eV by adjusting the annealing temperature and Si layer thickness. Careful structural analyses revealed that the change in optical bandgap is due to the quantum confinement effect.
Instrument
RMP-510
Keywords
Probe Raman, Optical absorption, Si/Sio2 superlattices