Electrosynthesis of cadmium sulfide on sulfur- or thiol-modified polycrystalline gold electrodes

Electrodeposition of CdTe thin films on Te-modified polycrystalline gold substrates

“…The two-step cathodic electrodeposition approach developed earlier by us for a variety of metal chalcogenide semiconductors [6][7][8][9][10][11] has been now extended to CdTe by complexing the Cd 2+ species with EDTA such that Cd 2+ electroreduction is delayed to potentials more negative than the Te 0 ! Te 2À conversion regime.…”

“…As a new cathodic electrodeposition strategy, we have developed a two-step approach based on the initial electrochemical modification of the substrate (e.g., Au) with the chalcogen (e.g., Te 0 ), followed by its subsequent reduction in a chalcogen-free electrolyte dosed with suitable amount of metal ion. This approach has been demonstrated for iron sulfide [6], indium sulfide [7], cadmium sulfide [8], cadmium selenide [9], and also for the preparation of CdSe nanoparticles in a cyclodextrin template [10] and ZnTe thin films [11].…”

Room Temperature Synthesis of CdS Nanocrystallites

“…Therefore, proper surface modification by stabilizers can remove the localized surface-trap states and significantly increases the quantum yield of the excitonic emission. Commonly used stabilizers are phosphine oxide, phosphates, various thiols, biomolecules, and organic dendrons, which become the hot topic of nanotechnology [4][5][6][7][8][9][10].…”

Electrochemical Synthesis of CdSe Nanoparticles Using a Se-modified RVC Electrode and Mercaptoacetic Acid as a Stabilizer

“…15 We have developed a two-step method for the electrochemical synthesis of semiconductor films or particles. [16][17][18][19] This approach is based on initial electrochemical modification of the substrate with the chalcogen. Subsequent electrochemical reduction of chalcogen in an aqueous electrolyte solution dosed with the desired metal generates compound semiconductor films on the substrate surface or particles in bulk solution with stirring.…”

“…Subsequent electrochemical reduction of chalcogen in an aqueous electrolyte solution dosed with the desired metal generates compound semiconductor films on the substrate surface or particles in bulk solution with stirring. This approach has been successfully used for the synthesis of semiconductor NPs such as CdTe 16,22 and films such as FeS2, 20 In2S3, 21 CdS, 18 CdSe, 17 CdTe, 19 and ZnTe. 23 Here we report the first example of electrochemical synthesis of CdSe NPs, in which particle size can be tuned by controlling heating time.…”