Effects of sm and mn co-doping on structural and optical properties of BiFeO3 thin films prepared by sol-gel technique

Wen Liang Zhou, Hong Mei Deng, Jun He, Jian Liu, Hui Yi Cao, Xue Zhen Zhai, Ping Xiong Yang, Jun Hao Chu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

(Bi1-xSmx)(Fe0.95Mn0.05)O3 (x=0.00, 0.03 and 0.06) thin films were deposited on the quartz substrates by sol-gel technique. The results of X-ray diffraction patterns indicated all thin films had rhombohedral perovskite structure. Moreover, the Sm and Mn co-doping at A- and B-site of BiFeO3 resulted in the structural distortion. Scanning electron microscope measurements exhibited that the uniform surface morphology could be obtained by co-doping and the average grain size of the films decreased with increasing Sm content. Furthermore, the fundamental absorption edges of xBSFMO films showed a blue shift with the increase of Sm content which can be observed in transmittance spectra. The optical band gap of the thin films for x= 0.00, 0.03 and 0.06 can be expressed by (0.84x+2.62) eV, which is due to the Burstein-Moss effect.

Original languageEnglish
Title of host publicationAdvanced Functional Materials
EditorsYafang Han, Zhongwei Gu, Qiang Fu
PublisherTrans Tech Publications Ltd
Pages149-153
Number of pages5
ISBN (Electronic)9783038353942
DOIs
StatePublished - 2015
EventChinese Materials Congress, CMC 2014 - Chengdu, China
Duration: 4 Jul 20147 Jul 2014

Publication series

NameMaterials Science Forum
Volume815
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress, CMC 2014
Country/TerritoryChina
CityChengdu
Period4/07/147/07/14

Keywords

  • BiFeO
  • Grain size
  • Sol-gel
  • XRD

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