ELECTRODEPOSITION%20OF%20CdS%20QUANTUM%20DOTS

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ELECTRODEPOSITION OF CdS QUANTUM DOTS

• Somayyeh Rahimi 78129506
• Sharif University of Technology
  
• 82/3/12

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Layout

• Introduction
• ED in aqueous systems
• CdS on PS
• application

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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

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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)

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Aqueous systemdeposition potential ,temperature,
PH
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Aqueous system
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Aqueous system XRD at different temperature
band gap graph
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Aqueous systemCdS on PS
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Aqueous system
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Applications

• Optoelectronic photoconductive devices
• Solar cells
• Transistors
• Detectors of visible light