OPTICAL AND STRUCTURAL CHARACTERISTICS OF ZINC OXIDE THIN FILMS PREPARED BY SELF ASSEMBLED MONOLAYERS (SAMS)
Optical and structural characteristics of zinc oxide thin films deposited by self assembled monolayers (SAMs) have been studied. Zinc oxide thin films were prepared under different conditions on glass substrates which involved immersing time and annealing temperature. The microstructure and optic...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/59277 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Optical and structural characteristics of zinc oxide thin films deposited by self
assembled monolayers (SAMs) have been studied. Zinc oxide thin films were
prepared under different conditions on glass substrates which involved immersing
time and annealing temperature. The microstructure and optical properties of ZnO
was investigated by means of x-ray diffraction analysis, plan-view and crosssectional
scanning electron microscope, and UV-visible spectrophotometer. The
effect of changing immersing time from 10 hour to 20 hour has been thoroughly
investigated. Optical transmittance decreased when the immersing time was
longer because obtained thin films were thicker. Optical transmittance up to 89%
in the visible range was obtained under optimal conditions. Based on the XRD
data, thin films prepared by SAMs had the structure of polycrystalline which had
three strongest peaks at (100), (002), and (101). It was found that the growth of
thin films occurred based on mixed growth (Stranski –Krastanov). Higher fraction
of densification occurred when thin films were annealed at higher temperature |
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