Measuring the Absorption Coefficients of TiN Thin Films with Different Thickness

Autor: Chun Ping Jiang, Yu Xiong Li, Hao Yu Chu, Cheng Yan Gu
Rok vydání: 2017
Předmět:
Zdroj: Materials Science Forum. 904:120-124
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.904.120
Popis: In this work, different thick TiN thin films were prepared by pulsed laser deposition on GaN substrates at 650°C. The crystal structure and morphology are characterized by X-ray Diffraction and Atomic Force Microscopy. We characterized the sample by cathodoluminescence spectroscopy at room temperature and measured the thickness of the film by a cross-sectional scanning electron microscopy. Combining the attenuation of light intensity and the thickness, the absorption coefficient of the samples can be estimated by the Beer-Lambert law. The absorption coefficients of TiN metal thin film obtained here are closed with each other. The optical properties may not change with increasing thickness.
Databáze: OpenAIRE