Morphology and size dependent optical properties of CdS nanostructures.
CdS nanoparticles with different sizes ranging from 2.5 nm to 300 nm and nanorods with aspect ratio -32 were synthesized by simple solvothermal process with a view to explore the effect of size and shape on the optical properties of these nanoforms. Solvent, temperature and the Cd source played important role in determining the morphologies and sizes of the nanocrystals. Comparative study of the optical properties of these nanoforms showed systematic changes in the optical absorption spectra with the reduction in particle size. Nanorods showed bulk like properties. Photoluminescence and Raman studies were carried out to explore the size and morphology dependent optical properties of the CdS nanoforms.
Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India.
Soumitra
S
Kar
S K
SK
Panda
B
B
Satpati
P V
PV
Satyam
S
S
Chaudhuri
D019187:Cadmium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D003460:Crystallization / Q000379:methods*; D008027:Light; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011829:Radiation Dosage; D012666:Semiconductors; D013440:Sulfides / Q000737:chemistry* / Q000528:radiation effects*
D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide