Enhancement of Photon Absorption on BaxSr1-xTiO3 Thin-Film Semiconductor Using Photonic Crystal

Autor: Nuayi, Abd. Wahidin, Alatas, Husin, Husein, Irzaman S., Rahmat, Mamat
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Optics, Vol 2014 (2014)
ISSN: 1687-9392
1687-9384
Popis: Enhancement of photon absorption on barium strontium titanate (BaxSr1-xTiO3) thin-film semiconductor for mole fraction x=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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