Electrodeposition of Chalcogenide ZnSe Thin Films with Tailored Compositions in Alkaline Aqueous Citrate Solutions. Issue 7 (1st January 2016)

• Record Type: Journal Article
• Authors: Kim, Donguk; Park, Kimoon; Jung, Hyunsung; Yoo, Bongyoung
• Is Part Of: Journal of the Electrochemical Society. Volume 163:Issue 7(2016)
• Page Start: D300
• Page End: D304
• Publication Date: 2016-01-01
• Subjects: Annealing -- Chalcogenide -- Citrate -- Electrodeposition -- pH -- SeO32- -- ZnSe; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0611607jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Cyclic voltammetry and linear sweep voltammetry analyses were utilized to systematically investigate the electrochemical behavior of ZnSe as a function of the applied potential and pH. The impact of the applied potential and pH was correlated with the film composition. The ZnSe composition, including a stoichiometric composition (Zn:Se = 1:1), was controlled using the applied potential in aqueous alkaline electrolytes containing citrate, since the reduced difference of the reduction potentials between Zn and Se ions was due to the predominant Se electroactive species enabling the underpotential deposition of ZnSe. The morphology and crystallinity of the ZnSe thin films electrodeposited in the electrolytes at different pH were characterized by SEM and XRD analysis. The annealing temperature-dependent crystallinities of the ZnSe thin films were also analyzed.