Title of Abstract
Thin Films of Cu-Doped CdS Prepared by a Pulsed Cathodic Deposition Method in Dimethylsulfoxide
Poster Number
038
College
College of Arts and Sciences
Department
Chemistry, Physics, Geology, & the Environment
Faculty Mentor
Clifton Harris, Ph.D.
Abstract
Thin films of copper-doped CdS were prepared on conductive oxide substrates (FTO) by application of a cathodic current in an electrolyte bath of Cd2+, Cu2+, complexing agents, and S(0) in DMSO at elevated temperature with a duty cycle of 20%. Film thickness was controlled via the number of pulses and later confirmed by profilometry analysis. P-type conductivity was confirmed by open-circuit and Mott–Schottky analyses. Furthermore, the photoactivity of the films was assessed in neutral media using a three-electrode setup. By depositing this material onto the surface of a p-type oxygen-evolving catalyst (OEC) with suitable band structure, a z-scheme photocatalytic device can be produced and employed for water splitting.
Previously Presented/Performed?
Fourth Annual Clemson Chemistry Research Symposium, Clemson, SC, March 2019
Grant Support?
Supported by a grant from the National Science Foundation EPSCoR Program (MADE in SC)
Start Date
12-4-2019 2:15 PM
End Date
April 2019
Thin Films of Cu-Doped CdS Prepared by a Pulsed Cathodic Deposition Method in Dimethylsulfoxide
Richardson Ballroom – DiGiorgio Campus Center
Thin films of copper-doped CdS were prepared on conductive oxide substrates (FTO) by application of a cathodic current in an electrolyte bath of Cd2+, Cu2+, complexing agents, and S(0) in DMSO at elevated temperature with a duty cycle of 20%. Film thickness was controlled via the number of pulses and later confirmed by profilometry analysis. P-type conductivity was confirmed by open-circuit and Mott–Schottky analyses. Furthermore, the photoactivity of the films was assessed in neutral media using a three-electrode setup. By depositing this material onto the surface of a p-type oxygen-evolving catalyst (OEC) with suitable band structure, a z-scheme photocatalytic device can be produced and employed for water splitting.
