OPTICAL PROPERTIES ANALYSIS OF SN:ZNO GROWN BY DC-UNBALANCED MAGNETRON SPUTTERING
In this research, we study the optical properties of Sn:ZnO. As a comparison, ZnO from our previous study will be used to compare pure ZnO and Sn:ZnO. Our research focus is to study about the effect of Sn dopant in the ZnO system. The deposition has been performed by DC-unbalanced magnetron sputteri...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/30871 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In this research, we study the optical properties of Sn:ZnO. As a comparison, ZnO from our previous study will be used to compare pure ZnO and Sn:ZnO. Our research focus is to study about the effect of Sn dopant in the ZnO system. The deposition has been performed by DC-unbalanced magnetron sputtering technique. We prepared 3 samples with the variation of growth temperature (room temperature, 150°C, and 250°C). Argon gas is used during the deposition process. EDX result confirms that Sn:ZnO samples are grown succesfully with average dopant concentration of 2 at%. The Sn dopant give effect to optical properties of ZnO materials. The dielectric constant was extracted from ? and ? spectra. Based on the dielectric function spectra, there is blueshift for ?1 due to incorporation of Sn atom in ZnO system. From UV-Vis spectroscopy, we obtain that Sn doping can increase transmittance between 2% until more than 10%. Optical conductivity can be obtained from ?2. It reveals that Sn dopant increase the conductivity especially in the region of more than 4 eV. The modification of optical properties through Sn dopant is important to improve the functionality of ZnO especially for optoelectronic applications. |
|---|