Abstract
Certain treatments done to binary CdS , such as incorporating Ni onto CdS produces ternary thin films may cause major optical parameters that have a number of applications including for solar cell device fabrication. In this paper, we report on the effect of surface passivation on the band gap and other related optical properties of CdNiS thin films. Thin films for Cd x Ni 1-x S were prepared on glass substrates by chemical solution method. Effects of surface passivation and variation of the volume of nickel ions on the optical properties CdS hence obtaining Cd x Ni 1-x S thin films was investigated. It was observed that the thin films hard an average Transmittance above 68 %, with reflectance below 25 % across UV-VIS-NIR region. A plot of ( αhν ) 2 versus hν gave energy band gap between 2.55–3.49 eV for as-grown samples and 2.82–3.50 eV for annealed samples. The passivated samples had band gap energy values within the range 2.85–3.12 eV. It was concluded that an increase in concentration of Cd 2+ and Ni 2+ ions in the reaction led to an increase the band gap while optical conductivity ranged between 3.78x10 11 –2.40x10 12 S -1 .
Highlights
INTRODUCTIONCertain treatments done to binary CdS, such as incorporating Ni onto CdS produces ternary thin films
Certain treatments done to binary CdS, such as incorporating Ni onto CdS produces ternary thin films may cause major optical parameters that have a number of applications including for solar cell device fabrication
We report on the effect of surface passivation on the band gap and other related optical properties of CdNiS thin films
Summary
Certain treatments done to binary CdS, such as incorporating Ni onto CdS produces ternary thin films Such ternary thin film materials may cause major change in the optical parameters that may have a number of optoelectronic applications. It may have a direct influence on the electrical properties of the resulting material or the modification may result into some properties useful for single hetero-junction solar cells [8, 10] and especially nickel, Ni. The concept used in this report to explain observations made in CdxNi1-xS is based on the ion-to-ion model [7, 12]. We report on a CBD process that promotes large area deposition [24] for efficient photovoltaic cells, sensors and lasers applications [2, 6]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
