Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times
Cadmium sulphide (CdS) thin films were deposited on glass substrates using thermal vacuum evaporation technique at pressure (10-6) Torr at room temperature then samples irradiated by CO2 laser of power (1 watt) and wave length (10.6) μm at distance 10 cm from the source during different exposure...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tikrit University
2023-02-01
|
| Series: | Tikrit Journal of Pure Science |
| Subjects: | |
| Online Access: | https://tjpsj.org/index.php/tjps/article/view/1177 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849427519171723264 |
|---|---|
| author | Najat A. Dahham |
| author_facet | Najat A. Dahham |
| author_sort | Najat A. Dahham |
| collection | DOAJ |
| description |
Cadmium sulphide (CdS) thin films were deposited on glass substrates using thermal vacuum evaporation technique at pressure (10-6) Torr at room temperature then samples irradiated by CO2 laser of power (1 watt) and wave length (10.6) μm at distance 10 cm from the source during different exposure times (3, 5, 10, 15) sec. The absorbance spectra was recorded using UV-visible spectrophotometer .Optical properties such as transmission , reflection ,absorption coefficient (α), optical band gap (Eg), extinction coefficient (K), refractive index (n), and complex dielectric constants (er&ei) were evaluated from absorbance spectra. The results shows that the laser irradiation cause increased in reflectance R, absorption coefficient a, the extinction coefficient K, the refractive index n and the real part and imaginary part of dielectric constant while irradiation cause decrease in the transmittance T and the value of the energy gap Eg.
|
| format | Article |
| id | doaj-art-bf1d9e8e6ce14f3f84329aaad867cf25 |
| institution | Kabale University |
| issn | 1813-1662 2415-1726 |
| language | English |
| publishDate | 2023-02-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Pure Science |
| spelling | doaj-art-bf1d9e8e6ce14f3f84329aaad867cf252025-08-20T03:28:59ZengTikrit UniversityTikrit Journal of Pure Science1813-16622415-17262023-02-0120210.25130/tjps.v20i2.1177Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure timesNajat A. Dahham Cadmium sulphide (CdS) thin films were deposited on glass substrates using thermal vacuum evaporation technique at pressure (10-6) Torr at room temperature then samples irradiated by CO2 laser of power (1 watt) and wave length (10.6) μm at distance 10 cm from the source during different exposure times (3, 5, 10, 15) sec. The absorbance spectra was recorded using UV-visible spectrophotometer .Optical properties such as transmission , reflection ,absorption coefficient (α), optical band gap (Eg), extinction coefficient (K), refractive index (n), and complex dielectric constants (er&ei) were evaluated from absorbance spectra. The results shows that the laser irradiation cause increased in reflectance R, absorption coefficient a, the extinction coefficient K, the refractive index n and the real part and imaginary part of dielectric constant while irradiation cause decrease in the transmittance T and the value of the energy gap Eg. https://tjpsj.org/index.php/tjps/article/view/1177Cadmium Sulfide (CdS)thin filmThermal evaporationlaser irradiationoptical properties |
| spellingShingle | Najat A. Dahham Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times Tikrit Journal of Pure Science Cadmium Sulfide (CdS) thin film Thermal evaporation laser irradiation optical properties |
| title | Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times |
| title_full | Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times |
| title_fullStr | Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times |
| title_full_unstemmed | Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times |
| title_short | Study of the Optical properties for CdS before and after irradiated by CO2 laser for different exposure times |
| title_sort | study of the optical properties for cds before and after irradiated by co2 laser for different exposure times |
| topic | Cadmium Sulfide (CdS) thin film Thermal evaporation laser irradiation optical properties |
| url | https://tjpsj.org/index.php/tjps/article/view/1177 |
| work_keys_str_mv | AT najatadahham studyoftheopticalpropertiesforcdsbeforeandafterirradiatedbyco2laserfordifferentexposuretimes |