Enhancement of Photon Absorption onBaxSr1-xTiO3Thin-Film Semiconductor Using Photonic Crystal
| Autor: | M. Rahmat, Husin Alatas, Irzaman Husein, Abd. Wahidin Nuayi |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Analytical chemistry Mole fraction Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Absorbance Semiconductor Optics Attenuation coefficient Thin film business Absorption (electromagnetic radiation) Photonic crystal Transparent conducting film |
| Zdroj: | International Journal of Optics. 2014:1-8 |
| ISSN: | 1687-9392 1687-9384 |
| DOI: | 10.1155/2014/534145 |
| Popis: | Enhancement of photon absorption on barium strontium titanate (BaxSr1-xTiO3) thin-film semiconductor for mole fractionx=0.25, 0.35, 0.45, and 0.55 using one-dimensional photonic crystal with defect was investigated experimentally. The thin film was grown on transparent conductive oxide (TCO) substrate using chemical solution deposition method and annealed at 500°C for 15 hours with increasing rate of 1.6°C/min. From optical characterization in visible spectrum it was found that the average absorption percentages are 92.04%, 83.55%, 91.16%, and 80.12%, respectively. The BST thin film with embedded photonic crystal exhibited a relatively significant enhancement on photon absorption, with increasing value of 3.96%, 7.07%, 3.04%, and 13.33% for the respective mole fraction and demonstrating absorbance characteristic with flat feature. In addition, we also discuss the thin-film properties of attenuation constant and electrical conductivity. |
| Databáze: | OpenAIRE |
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