Chemical bath deposited (Cd0.85-Zn0.15)S nanocrystalline film: Influence of capping agent on various characterizations
| Autor: | Ayush Khare, Devjyoti Lilhare |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Photoluminescence
Materials science Absorption spectroscopy Polyvinylpyrrolidone Scanning electron microscope Thiophenol Analytical chemistry 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Nanocrystalline material 0104 chemical sciences chemistry.chemical_compound chemistry medicine General Materials Science 0210 nano-technology Chemical bath deposition medicine.drug |
| Zdroj: | Materials Chemistry and Physics. 270:124835 |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2021.124835 |
| Popis: | The (Cd0.85-Zn0.15)S ternary alloy film was deposited on FTO coated glass substrate by chemical bath deposition (CBD) technique using Mercaptoethanol (MEL), Thiophenol (TP), Polyvinylpyrrolidone (PVP) and Thioglycerol (TG) as capping agents. In order to classify the crystalline behavior of the deposited films, X-ray diffraction (XRD) studies were performed. Broad and narrow peaks were identified for the uncapped and capped films, respectively. Confirmation of hexagonal crystal structure was demonstrated and the highest peak was observed along the (002) orientation. The surface morphology was studied using scanning electron microscopy (SEM). Cabbage-like morphology was observed for uncapped (Cd0.85-Zn0.15)S film whereas honey comb, spherical like structure was observed for the capped films. In optical studies, absorption spectra of capped films were observed to be shifted to the lower wavelength side in comparison to the uncapped film. Energy band-gap values of capped films were found to be greater than that of the uncapped film. The variation in optical constants was also studied using various parameters. Photoluminescence spectra werealso recorded and the variation in uncapped and capped films was compared. |
| Databáze: | OpenAIRE |
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