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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Abd-Elrahman, M. I. Abdel-Latief, A. Y. Khafagy, Rasha M. Younis, Noha Hafiz, M. M. |
| Description | Author Affiliation: Abd-Elrahman MI ( Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt. Electronic address: mostafaia11@yahoo.com.); Abdel-Latief AY ( Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.); Khafagy RM ( Materials Science Laboratory, Physics Department, Girls College for Arts, Science, and Education, Ain Shams University, Cairo, Egypt.); Younis N ( Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.); Hafiz MM ( Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.) |
| Abstract | Chalcogenide Ag10As30S60 thin films are prepared using the thermal evaporation technique from the bulk alloy. Deferential Scanning Calorimetry (DSC) curve reveals two crystallization stages for the bulk. The X-ray examination of the as-prepared and annealed films shows that the sample is crystallized in preferential orientations indicated with peaks corresponding the S8 and ternary AsAg3S3 phases. Transmission spectra show that the as-prepared and annealed films have highly transparent over the visible region. The presence of a sharp absorption edge for all films in the transmission spectra recommends Ag10As30S60 thin films as a good optical filter material. The improvement in transparency upon annealing is due to the enhancement in the crystallinity. The decrease in both optical band gap and refractive index of annealed films after crystallization temperatures is discussed in accordance with the structure changes upon annealing. |
| ISSN | 13861425 |
| Volume Number | 137 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-02-25 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Alloys Chemistry Arsenic Silver Sulfur Crystallization Light Refractometry Surface Properties Temperature X-ray Diffraction Journal Article Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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