红外与毫米波学报, 2004, 23 (1): 47, 网络出版: 2006-05-10
化学溶液分解法制备的Bi2Ti2O7薄膜的红外光学性质研究
INFRARED OPTICAL PROPERTIES OF Bi2Ti2O7 THIN FILMS PREPARED BY CHEMICAL SOLUTION DECOMPOSITION TECHNIQUE
化学溶液分解法 Bi2Ti2O7薄膜 椭偏光谱 红外光学性质 chemical solution decomposition technique Bi2Ti2O7 thin fi infrared spectroscopic ellipsometry infrared optical properties
摘要
采用化学溶液分解法在n-GaAs(100)衬底上制备了Bi2Ti2O7薄膜.利用红外椭圆偏振光谱仪测量了波长为2.8~12.5μm范围内Bi2Ti2O7薄膜的椭偏光谱,采用Lorentz-Drude色散模型拟合获得Bi2Ti2O7薄膜的红外介电常数,并进一步计算得到折射率n、消光系数k和吸收系数α,拟合计算得到Bi2Ti2O7薄膜的厚度为139.2nm.
Abstract
Bi2Ti2O7 thin films were deposited on n-GaAs(100) by chemical solution decomposition technique. The infrared optical properties of the thin films were measured by infrared spectroscopic ellipsometry in the wavelength range of 2.8~12.5μm. Lorentz-Drude dispersion model was used to express the infrared dielectric constants of the Bi2Ti2O7 thin films, and the refractive index n, the extinction coefficient k and the absorption coefficient α of the thin films were calculated. The thickness of the Bi2Ti2O7 thin films was obtained as 139.2 nm by fitting.
胡志高, 王少伟, 黄志明, 吴玉年, 陆卫, 褚君浩. 化学溶液分解法制备的Bi2Ti2O7薄膜的红外光学性质研究[J]. 红外与毫米波学报, 2004, 23(1): 47. 胡志高, 王少伟, 黄志明, 吴玉年, 陆卫, 褚君浩. INFRARED OPTICAL PROPERTIES OF Bi2Ti2O7 THIN FILMS PREPARED BY CHEMICAL SOLUTION DECOMPOSITION TECHNIQUE[J]. Journal of Infrared and Millimeter Waves, 2004, 23(1): 47.