Fabrication and properties of zinc oxide thin film prepared by sol-gel dip coating method

被引：90

作者：

Kayani, Zohra Nazir ^{[1
]}

Iqbal, Maryam ^{[1
]}

Riaz, Saira ^{[2
]}

Zia, Rehana ^{[1
]}

Naseem, Shahzad ^{[2
]}

机构：

[1] Women Univ, Lahore Coll, Lahore 54000, Pakistan

[2] Univ Punjab, Ctr Excellence Solid State Phys, Lahore 54900, Pakistan

来源：

MATERIALS SCIENCE-POLAND | 2015年 / 33卷 / 03期

关键词：

thin films; sol-gel; X-ray diffraction; optical properties; ZNO;

D O I：

10.1515/msp-2015-0085

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO thin films were deposited on a glass substrate by dip coating technique using a solution of zinc acetate, ethanol and distilled water. Optical constants, such as refractive index n and extinction coefficient k, were determined from transmittance spectrum in the ultraviolet-visible-near infrared (UV-Vis-NIR) regions using envelope methods. The films were found to exhibit high transmittance, low absorbance and low reflectance in the visible regions. Absorption coefficient proportional to, and the thickness of the film t were calculated from interference of transmittance spectra. The direct optical band gap of the films was in the range of 3.98 to 3.54 eV and the thickness of the films was evaluated in the range of 173 to 323 nm, while the refractive index slightly varied in the range of 1.515 to 1.622 with an increase in withdrawal speed from 100 to 250 mm/s. The crystallographic structure of the films was analyzed with X-ray diffractometer. The films were amorphous in nature.

引用

页码：515 / 520

页数：6

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