Effect of substrates on the structure and optical properties of polycrystalline BiFeO3 thin films

Ling Chen; Zhen Zhu Wan; Qing Bo Wang; Wei Ren; Zuo Guang Ye; Mei Quan; Gang He

doi:10.1016/j.ijleo.2015.10.106

Effect of substrates on the structure and optical properties of polycrystalline BiFeO₃ thin films

Ling Chen
, Zhen Zhu Wan
, Qing Bo Wang
, Wei Ren
, Zuo Guang Ye
, Mei Quan
, Gang He

Faculty of Electronic and Information Engineering

China University of Geosciences, Wuhan

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Multiferroic BiFeO₃ thin films were prepared on Pt/TiO₂/SiO₂/Si and ITO/glass substrates by sol-gel preparation method. Pure perovskite phase and uniform surface topography have been verified by X-ray diffraction and atomic force microscopy, respectively. In addition, optical property measured by spectroscopic ellipsometer indicated that the absorptivity of both BiFeO₃ thin films was enhanced with increasing photo energy after an illumination among 250-1000 nm. Tauc calculation indicated that the direct band gap was 2.92 eV for the film on Pt/TiO₂/SiO₂/Si, which is about 0.4 eV lower than that of the film on ITO/glass.

Original language	English
Pages (from-to)	585-587
Number of pages	3
Journal	Optik
Volume	127
Issue number	2
DOIs	https://doi.org/10.1016/j.ijleo.2015.10.106
State	Published - 1 Jan 2016

Keywords

Optical materials and properties
Sol-gel preparation
Thin films

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10.1016/j.ijleo.2015.10.106

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title = "Effect of substrates on the structure and optical properties of polycrystalline BiFeO3 thin films",

abstract = "Multiferroic BiFeO3 thin films were prepared on Pt/TiO2/SiO2/Si and ITO/glass substrates by sol-gel preparation method. Pure perovskite phase and uniform surface topography have been verified by X-ray diffraction and atomic force microscopy, respectively. In addition, optical property measured by spectroscopic ellipsometer indicated that the absorptivity of both BiFeO3 thin films was enhanced with increasing photo energy after an illumination among 250-1000 nm. Tauc calculation indicated that the direct band gap was 2.92 eV for the film on Pt/TiO2/SiO2/Si, which is about 0.4 eV lower than that of the film on ITO/glass.",

keywords = "Optical materials and properties, Sol-gel preparation, Thin films",

author = "Ling Chen and Wan, \{Zhen Zhu\} and Wang, \{Qing Bo\} and Wei Ren and Ye, \{Zuo Guang\} and Mei Quan and Gang He",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.ijleo.2015.10.106",

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pages = "585--587",

journal = "Optik",

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TY - JOUR

T1 - Effect of substrates on the structure and optical properties of polycrystalline BiFeO3 thin films

AU - Chen, Ling

AU - Wan, Zhen Zhu

AU - Wang, Qing Bo

AU - Ren, Wei

AU - Ye, Zuo Guang

AU - Quan, Mei

AU - He, Gang

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Multiferroic BiFeO3 thin films were prepared on Pt/TiO2/SiO2/Si and ITO/glass substrates by sol-gel preparation method. Pure perovskite phase and uniform surface topography have been verified by X-ray diffraction and atomic force microscopy, respectively. In addition, optical property measured by spectroscopic ellipsometer indicated that the absorptivity of both BiFeO3 thin films was enhanced with increasing photo energy after an illumination among 250-1000 nm. Tauc calculation indicated that the direct band gap was 2.92 eV for the film on Pt/TiO2/SiO2/Si, which is about 0.4 eV lower than that of the film on ITO/glass.

AB - Multiferroic BiFeO3 thin films were prepared on Pt/TiO2/SiO2/Si and ITO/glass substrates by sol-gel preparation method. Pure perovskite phase and uniform surface topography have been verified by X-ray diffraction and atomic force microscopy, respectively. In addition, optical property measured by spectroscopic ellipsometer indicated that the absorptivity of both BiFeO3 thin films was enhanced with increasing photo energy after an illumination among 250-1000 nm. Tauc calculation indicated that the direct band gap was 2.92 eV for the film on Pt/TiO2/SiO2/Si, which is about 0.4 eV lower than that of the film on ITO/glass.

KW - Optical materials and properties

KW - Sol-gel preparation

KW - Thin films

UR - https://www.scopus.com/pages/publications/84949521305

U2 - 10.1016/j.ijleo.2015.10.106

DO - 10.1016/j.ijleo.2015.10.106

M3 - 文章

AN - SCOPUS:84949521305

SN - 0030-4026

VL - 127

SP - 585

EP - 587

JO - Optik

JF - Optik

IS - 2

ER -

Effect of substrates on the structure and optical properties of polycrystalline BiFeO₃ thin films

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Keywords

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