Density functional theoretical determinations of electronic and optical properties of nanowires and bulks for CdS and CdSe
2007
The authors present density functional theoretical results of electronic and optical properties of wurtzite-type CdS and CdSe semiconductor nanowires and bulks. The results show that quantum confinement will increase the energy gap, decrease the dielectric function, change the sign of birefringence, and increase the absolute value of birefringence at low-frequency region, as the dimensions of CdS and CdSe are reduced from the bulk to a nanowire with diameter of several nanometers. The optical spectral peaks of CdSe nanowires show redshifts as compared with the corresponding ones of CdS nanowires.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
38
References
37
Citations
NaN
KQI