Electrochemical deposition of zinc selenide and cadmium selenide onto porous silicon from aqueous acidic solutions

• Published in: Thin solid films Vol. 517; no. 21; pp. 5981 - 5987
• Main Authors: Chubenko, E.B., Klyshko, A.A., Petrovich, V.A., Bondarenko, V.P.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-09-2009; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Electrochemical deposition; Electrodeposition, electroplating; Exact sciences and technology; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Physics; Porous silicon; Selenides; Structure and morphology; thickness; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Thin film structure and morphology; Voltammetry; X-ray diffraction; Electrochemical deposition; X-ray diffraction; Voltammetry; Selenides; Porous silicon; Scanning electron microscopy; Annealing; Experimental data; X-ray microscopy; Porous semiconductors; Binary compounds; Zinc selenides; XRD; Acidic solution; Deposition process; Cadmium selenides; Thin films; Aqueous solutions; Electrodeposition; X ray diffractometry; Crystal structure
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2009.03.134

An electrochemical deposition process of ZnSe and CdSe compound semiconductors from aqueous acidic solutions onto silicon substrates with porous silicon layers formed on their surfaces was studied by the voltammetry method. The experimental data obtained were compared with the deposition data onto metal and silicon substrates, and the optimal conditions for the binary compound deposition onto porous silicon were determined. Semiconductor films deposited were studied by scanning electron microscopy, X-ray diffractometry, and X-ray microanalysis. The films are shown to have the crystalline structure and a nearly stoichiometric composition with a minor Se excess. Further annealing in air for 15 min allowed the Se concentration to be decreased.