EFFECT OF POTASSIUM CYANIDE ETCHING ON STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF Cu2ZnSnS4 THIN FILMS DEPOSITED BY A MODIFIED SPRAY PROCESS

Samira Bouzida, El Bachir Benamar, Manale Battas, Guy Schmerber, Zouheir Sekkat, Aziz Dinia, Abdelilah Slaoui, Mohammed Abd-Lefdil and Mohammed Regragui
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Samira Bouzida: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco
El Bachir Benamar: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco
Manale Battas: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco
Guy Schmerber: #x2020;Université de Strasbourg, CNRS, Institut de Physique et Chimie des, Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
Zouheir Sekkat: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco‡Optics and Photonics Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat, Morocco
Aziz Dinia: #x2020;Université de Strasbourg, CNRS, Institut de Physique et Chimie des, Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France
Abdelilah Slaoui: #xA7;Université de Strasbourg, CNRS, Laboratoire ICube, UMR 7357, F-67000 Strasbourg, France
Mohammed Abd-Lefdil: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco
Mohammed Regragui: MANAPSE, Faculty of Sciences, University of Mohammed V-Rabat, Morocco

Surface Review and Letters (SRL), 2019, vol. 26, issue 09, 1-7

Abstract: We report the effect of potassium cyanide etching treatment on structural, optical and electrical properties of Cu2ZnSnS4 thin films prepared by a spray-assisted chemical vapor deposition process. Raman spectroscopy and X-ray diffraction measurements before and after potassium cyanide etching have confirmed the kesterite structure of Cu2ZnSnS4 films. Potassium cyanide treatment led to the elimination of Cu2−xS secondary phase. Optical measurements showed that the band gap value was about 1.52eV. The best electrical resistivity and Hall mobility values were reached for a deposition temperature of 450∘C in both cases without and with potassium cyanide treatment.

Keywords: Cu2ZnSnS4; potassium cyanide; spray-assisted CVD; thin film; characterization (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X19500537

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