Influence of pH on the physical properties of CdS thin film and its photosensor application
Synthesizing thin films on various substrates and serving as electrodes for photosensor is challenging task. In this work, influence of pH on structural and optical properties of cadmium sulfide (CdS) thin film investigated using a chemical bath deposition method on a glass substrate. The fabricated...
Gespeichert in:
Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2021-08, Vol.127 (8), Article 597 |
---|---|
Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Synthesizing thin films on various substrates and serving as electrodes for photosensor is challenging task. In this work, influence of pH on structural and optical properties of cadmium sulfide (CdS) thin film investigated using a chemical bath deposition method on a glass substrate. The fabricated CdS film was characterized by using an X-ray diffraction pattern and field emission scanning electron microscopy (FE-SEM). From the structural analysis study, it shows that CdS thin film has a hexagonal phase structure. FE-SEM analysis study revealed uniform and homogenous deposition on the glass. Moreover, at pH = 10, the smallest crystal size obtained ~3 nm. From optical properties, analysis shows that CdS has a 3.12 eV–3.13 eV bandgap. The electrical parameters for films show substantial growth in current after light illumination. Also, the photosensitivity found that their sensitivity to light increases with reduction in the pH value. |
---|---|
ISSN: | 0947-8396 1432-0630 |
DOI: | 10.1007/s00339-021-04743-y |