Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing
The structural and optical properties of silver telluride films with doped 2% aluminum (Ag2Te:2%Al), prepared using the thermal evaporation technique, were studied on glass substrates with a thickness of (400+ 20) nm after changing the annealing temperature to (300° C) for one hour. The films were...
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University of Baghdad
2025-01-01
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| Series: | Ibn Al-Haitham Journal for Pure and Applied Sciences |
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| Online Access: | https://jih.uobaghdad.edu.iq/index.php/j/article/view/3621 |
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| author | liqaa Al-Dulaimi Aliyah A. Shihab |
| author_facet | liqaa Al-Dulaimi Aliyah A. Shihab |
| author_sort | liqaa Al-Dulaimi |
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The structural and optical properties of silver telluride films with doped 2% aluminum (Ag2Te:2%Al), prepared using the thermal evaporation technique, were studied on glass substrates with a thickness of (400+ 20) nm after changing the annealing temperature to (300° C) for one hour. The films were found to be polycrystalline, and monoclinic at room temperature (R.T.), the structure became cubic after annealing. In XRD test we found that the crystallite size of the doped films is larger before annealing than it is for the (Ag2Te:2%Al) films, and AFM tests showed that the grain size increases after annealing It also shows that the structure is nano, UV-visible optical tests of Ag2Te films revealed that absorbance values decrease after annealing while the absorption coefficient increases, ascertain the values of the absorption coefficient depending on the equation that links the values of the absorption coefficient with absorbance [α= (2.303)A/t]. The energy gap for pure films reduces after doping and annealing. The optical absorption coefficient (α) value for each film was greater than (104 cm -1) this means all films have an optical energy gap with direct transmission.
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| format | Article |
| id | doaj-art-d0cdb33c1ac441b4933c36f635229b69 |
| institution | Kabale University |
| issn | 1609-4042 2521-3407 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Ibn Al-Haitham Journal for Pure and Applied Sciences |
| spelling | doaj-art-d0cdb33c1ac441b4933c36f635229b692025-01-22T01:21:05ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072025-01-0138110.30526/38.1.3621Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealingliqaa Al-Dulaimi0https://orcid.org/0009-0008-0370-742XAliyah A. Shihab1https://orcid.org/0009-0000-3334-3868Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq. The structural and optical properties of silver telluride films with doped 2% aluminum (Ag2Te:2%Al), prepared using the thermal evaporation technique, were studied on glass substrates with a thickness of (400+ 20) nm after changing the annealing temperature to (300° C) for one hour. The films were found to be polycrystalline, and monoclinic at room temperature (R.T.), the structure became cubic after annealing. In XRD test we found that the crystallite size of the doped films is larger before annealing than it is for the (Ag2Te:2%Al) films, and AFM tests showed that the grain size increases after annealing It also shows that the structure is nano, UV-visible optical tests of Ag2Te films revealed that absorbance values decrease after annealing while the absorption coefficient increases, ascertain the values of the absorption coefficient depending on the equation that links the values of the absorption coefficient with absorbance [α= (2.303)A/t]. The energy gap for pure films reduces after doping and annealing. The optical absorption coefficient (α) value for each film was greater than (104 cm -1) this means all films have an optical energy gap with direct transmission. https://jih.uobaghdad.edu.iq/index.php/j/article/view/3621Ag2Te thin filmsdopingAnnealingthermal evaporation |
| spellingShingle | liqaa Al-Dulaimi Aliyah A. Shihab Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing Ibn Al-Haitham Journal for Pure and Applied Sciences Ag2Te thin films doping Annealing thermal evaporation |
| title | Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing |
| title_full | Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing |
| title_fullStr | Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing |
| title_full_unstemmed | Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing |
| title_short | Studying the Physical Properties of Silver Telluride Films Doped with Aluminum by the Effect of Annealing |
| title_sort | studying the physical properties of silver telluride films doped with aluminum by the effect of annealing |
| topic | Ag2Te thin films doping Annealing thermal evaporation |
| url | https://jih.uobaghdad.edu.iq/index.php/j/article/view/3621 |
| work_keys_str_mv | AT liqaaaldulaimi studyingthephysicalpropertiesofsilvertelluridefilmsdopedwithaluminumbytheeffectofannealing AT aliyahashihab studyingthephysicalpropertiesofsilvertelluridefilmsdopedwithaluminumbytheeffectofannealing |