ABSTRACT
This study aimed to fabricate a quantum well using the chemical bath deposition (CBD) method, focusing on the effects of synthesis temperature, lead acetate mole concentration, and deposition time on the structural, morphological, and optical properties of Antimony Trisulfide (SbS) quantum well. Optical properties were characterized through optical transmittance and absorbance measurements using a Visible Spectrophotometer (Labtech 722) and UV-Vis light wavelength at room temperature in the specified wavelength ranges. The results showed significant variations in absorbance concerning deposition time. Notably, films deposited for 0.5 hours exhibited the highest peak absorbance at 1000nm, indicating their suitability for applications in photovoltaic devices.
Fourier Transform Infrared Spectrophotometry (FTIR) was employed to assess the structural characteristics of the films. The Thermo Scientific FTIR Spectrophotometer (iD1 Transmission - Nicolet iS5) was used, demonstrating its effectiveness in identifying inorganic compounds when coupled with appropriate sample processing, elemental analysis, and reference standards.
Based on the obtained absorbance values, the SbS/CZTS/SbS quantum well films hold promise for various applications, including thin-film transistors in the electronics industry, cold mirror coatings for architectural purposes, solar cell manufacturing, and protective UV coatings for eye glasses in the optical industry. In conclusion, SbS/CZTS/SbS thin film quantum wells were successfully deposited using the CBD technique. The films exhibited favorable optical absorbance properties, making them suitable candidates for semiconductor quantum wells with excellent photovoltaic capabilities. This research underscores the potential of CBD as a deposition method for such applications.
