Author

Abd. Wahidin Nuayi

Subject

- Sains

Abstract

Enhancement of photon absorption on BaxSr1-xTiO3 (BST) using photonic crystals thin films semiconductor for mole fraction x = 0.25, 0.35, 0.45 and 0.55 were investigated. BST thin films were grown on transparent conductive oxide (TCO) substrate using chemical solution deposition (CSD) method and annealed at 500 0C for 15 hours with increasing rate of 1.6 0C/min. From optical characterizations, for x = 0.25, 0.35, 0.45 and 0.55 in visible spectrum have average absorption percentages of 92.04%, 83.55%, 91.16% and 80.12%, respectively. BST thin film with embedded exhibited significant enhancement on photon absorption, with increasing value of 3.96%, 7.07%, 3.04% and 13.33% for the respective mole fraction. Furthemore, for x = 0.55, the orange spectrum region has the largest absorbance (37.71%), followed by yellow (33.53%), purple (17.85%), red (12.32%), blue (11.24%) and green (9.96%) spectrums. In addition, we also discuss its properties of attenuation constant and electrical conductivity. Keywords: BST, CSD, absorption, energy gap and photonic crystals

Publisher

Hindawi Publishing Corporation

Contributor

-

Publish

2014

Material Type

ARTIKEL

Right

http://dx.doi.org/10.1155/2014/534145