Chemical Synthesis of ZnS:Cu Nanosheets
Abstract
ZnS thin films are synthesized through chemical bath deposition (CBD) technique from aqueous solution of ZnSO4 and thiourea mixing in equal volume and equimolar ratio. A 1% CuSO4 solution is mixed with the ZnSO4 solution for doping before the final chemical reaction. SEM image shows the formation of mainly nanosheets, teeth and comb like structures. Absorption studies show red shift of enhanced band gap on Cu doping. Photoluminescence of ZnS:Cu reveals the enhancement of blue luminescence at 468 nm and low intensity green emission at 493 nm which is attributed to more Cu2+ lying in the interstices. XRD shows that the prepared ZnS nanophosphors possess cubic zinc blende structures.
- Publication:
-
International Conference on Advanced Nanomaterials and Nanotechnology (ICANN-2009)
- Pub Date:
- October 2010
- DOI:
- 10.1063/1.3504319
- Bibcode:
- 2010AIPC.1276...31B
- Keywords:
-
- thin films;
- scanning electron microscopes;
- doping profiles;
- X-ray diffraction;
- 81.15.Aa;
- 68.37.Hk;
- 81.70.Jb;
- 61.05.cp;
- Theory and models of film growth;
- Scanning electron microscopy;
- Chemical composition analysis chemical depth and dopant profiling;
- X-ray diffraction