7–11 Jul 2025
University of the Witwatersrand, Johannesburg
Africa/Johannesburg timezone

Effect of Ion Implantation on Structural and Optical Properties of CZTS Thin Films

Not scheduled
20m
Solomon Mahlangu House (University of the Witwatersrand, Johannesburg)

Solomon Mahlangu House

University of the Witwatersrand, Johannesburg

Poster Presentation Track A - Physics of Condensed Matter and Materials Poster Session

Speaker

Ms Tshegofatso Moipolai (University of South Africa -iThemba LABS)

Description

The study presents the findings of the effect of ion implantation on pristine Copper Zinc Tin Sulphide (CZTS) thin films. The CZTS films were prepared by utilizing a two-stage process, i.e. e-beam deposition of metal precursors; Cu, Zn, and Sn followed by sulphurization process in the tube furnace at 500°C for 30 min. These samples were further implanted with 150 keV V+ ions utilizing fluences, 1x10^16, 3x10^16, and 1x10^17 ions/cm^2. Fundamental properties that govern the photovoltaic applications, i.e., structural and optical were investigated on pristine and ion-implanted CZTS thin films using XRD, Raman, and UV-VIS techniques. The Raman results highlighted the presence of defects in the CZTS samples. UV-VIS revealed an energy band gap in the 1.83 - 1.45 eV range, and absorption within the UV range.

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Primary author

Ms Tshegofatso Moipolai (University of South Africa -iThemba LABS)

Co-authors

Morgan Madhuku (iThemba LABS) Prof. Sabata Moloi (University of South Africa) Mamogo Masenya (iThemba LABS) Christopher Mtshali (iThemba LABS)

Presentation materials

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