Journal
NANO HYBRIDS AND COMPOSITES
Volume 1, Issue -, Pages 45-56Publisher
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/NH.1.45
Keywords
Chalcogenide; nanocrystals; transmission electron microscopy; CdS; band gap
Categories
Funding
- Deanship of Scientific Research, Research Center, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
Ask authors/readers for more resources
Polymeric ligand (TSCF) have been synthesized via polycondansation of thiosemicarbazide with formaldehyde and its polymer metal complex [TSCF-Cd(II)] has been prepared with Cd(II) ion. Two different batches of CdS chalcogenide, semiconductor nanocrystals have been synthesized by hydrothermal treatment of TSCF-Cd(II)] using a glass Q tube reactor at 200 degrees C and 250 degrees C, and marked as (CdS)(1) and (CdS)(2) respectively. The resultant nanocrystals were characterized by a variety of methods for thier physochemcial properties. The TEM micrographs showed well-defined, close to hexagonal particles, and the lattice fringes in the HRTEM images confirmed their crystalline nature. The sizes of (CdS)(1) and (CdS)(2) were 40 and 50 nm respectively but their morphologies were similar. The optical band gap energies (2.52 eV/ 2.48 eV) and photoluminescence peaks (532/534 nm) of the synthesized CdS nanocrystals suggest that they can be promising photocatalysts. The conductivities and the dielectric constants of the CdS nanocrystals were also studied and the activation energy value of (CdS)(1) and (CdS)(2) nanocrystals were found to be 0.64 eV and 0.70 eV.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available