ELECTRODEPOSITION OF CdS QUANTUM DOTS

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Presentation transcript:

ELECTRODEPOSITION OF CdS QUANTUM DOTS Somayyeh Rahimi 78129506 Sharif University of Technology 82/3/12

Layout Introduction ED in aqueous systems CdS on PS application

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

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)

Aqueous system deposition potential ,temperature, PH

Aqueous system

Aqueous system XRD at different temperature band gap graph

Aqueous system CdS on PS

Aqueous system

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

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