Growth and Characterization of CdSe1−ySy Nanofilms Obtained by Chemical Bath Deposition
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Sociedade Brasileira de Física
2014
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876428944294543360 |
|---|---|
| author | J. I. Contreras-Rascón |
| author_facet | J. I. Contreras-Rascón |
| contents | Growth and Characterization of CdSe1−ySy Nanofilms Obtained by Chemical Bath Deposition J. I. Contreras-Rascón J. Díaz-Reyes R. S. Castillo-Ojeda J. A. Balderas-López J. S. Arias-Ceron J. E. Flores-Mena Física, Astronomía y Matemáticas Non XRD HRTEM Alloys Transmittance In this work, the growth and characterization of cadmiumselenide sulphur (CdSe1−ySy) deposited by chemical bath deposition (CBD) technique at the reservoir temperature of 20±2 °C are presented, varying the thiourea volume added to the growth solution in the range of 0–30 ml. The films chemical stoichiometry was determined by energy-dispersive X-ray spectroscopy (EDS). The X-ray diffraction (XRD) analysis and Raman scattering reveal that CdSe1−ySy-deposited films showed hexagonal wurtzite crystalline phase. The average size of the crystalline grain in relation to the sulphur volume varies in the range of 1.48–9.2 nm that was determined by using the Debye-Scherrer equation for the direction (100), which is confirmed by analyzing the grain average diameter by high-resolution transmission electron microscopy (HRTEM). Raman scattering shows that the lattice dynamics is characteristic of bimodal behaviour and the multipeak adjust of the first optical longitudinal mode for the CdSeS denotes, in all cases, the Raman shift of the characteristic peak in the range of 177–181 cm−1 of the CdSe crystals associated with the sulphur incorporation. CdSe1−ySy band gap energy can be varied from 1.86 to 2.11 eV by varying the thiourea volume added in the growth solution measured by transmittance at room temperature. 2014 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46432477017 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.6 Vol.44 |
| format | Artículo científico |
| id | redalyc_46432477017 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Growth and Characterization of CdSe1−ySy Nanofilms Obtained by Chemical Bath Deposition J. I. Contreras-Rascón Física, Astronomía y Matemáticas Non XRD HRTEM Alloys Transmittance Growth and Characterization of CdSe1−ySy Nanofilms Obtained by Chemical Bath Deposition J. I. Contreras-Rascón J. Díaz-Reyes R. S. Castillo-Ojeda J. A. Balderas-López J. S. Arias-Ceron J. E. Flores-Mena Física, Astronomía y Matemáticas Non XRD HRTEM Alloys Transmittance In this work, the growth and characterization of cadmiumselenide sulphur (CdSe1−ySy) deposited by chemical bath deposition (CBD) technique at the reservoir temperature of 20±2 °C are presented, varying the thiourea volume added to the growth solution in the range of 0–30 ml. The films chemical stoichiometry was determined by energy-dispersive X-ray spectroscopy (EDS). The X-ray diffraction (XRD) analysis and Raman scattering reveal that CdSe1−ySy-deposited films showed hexagonal wurtzite crystalline phase. The average size of the crystalline grain in relation to the sulphur volume varies in the range of 1.48–9.2 nm that was determined by using the Debye-Scherrer equation for the direction (100), which is confirmed by analyzing the grain average diameter by high-resolution transmission electron microscopy (HRTEM). Raman scattering shows that the lattice dynamics is characteristic of bimodal behaviour and the multipeak adjust of the first optical longitudinal mode for the CdSeS denotes, in all cases, the Raman shift of the characteristic peak in the range of 177–181 cm−1 of the CdSe crystals associated with the sulphur incorporation. CdSe1−ySy band gap energy can be varied from 1.86 to 2.11 eV by varying the thiourea volume added in the growth solution measured by transmittance at room temperature. 2014 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46432477017 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.6 Vol.44 |
| title | Growth and Characterization of CdSe1−ySy Nanofilms Obtained by Chemical Bath Deposition |
| topic | Física, Astronomía y Matemáticas Non XRD HRTEM Alloys Transmittance |
| url | https://www.redalyc.org/articulo.oa?id=46432477017 |