1. ELECTRODEPOSITION OF CdS QUANTUM DOTS
Somayyeh Rahimi
Sharif University of Technology
82/3/12

2. Layout
Introduction
ED in aqueous systems
CdS on PS
application

3. Electrodeposition
Electrodeposition (ED)
Formation of metal sulfide thin films by heterogeneous electrochemical reactions at a conductive substrate
ED of CdS
- In aqueous system
- In non-aqueous system

4. Aqueous system Conventional 3 electrode cell Electrolyte :
S2O3-2 + CdCl2 + EDTA
Electrodes :
Cathode or substrate (conductive materials : SS , ITO | FTO coated glass , Ti , PS)
Reference electrode (saturated calomel electrode)
Counter electrode (graphite)

5. Aqueous system deposition potential ,temperature, PH

6. Aqueous system

7. Aqueous system XRD at different temperature band gap graph

8. Aqueous system CdS on PS

9. Aqueous system

10. Optoelectronic & photoconductive devices
Applications
Optoelectronic & photoconductive devices
Solar cells
Transistors
Detectors of visible light