IHEP OpenIR  > 多学科研究中心
Manipulating the Structural and Electronic Properties of Epitaxial SrCoO2.5 Thin Films by Tuning the Epitaxial Strain
Zhao, JL; Guo, HZ; He, X; Zhang, QH; Gu, L; Li, XL; Jin, KJ; Yang, TY; Ge, C; Luo, Y; He, M; Long, YW; Wang, JO; Qian, HJ; Wang, C; Lu, HB; Yang, GZ; Ibrahim, K; Wang JO(王嘉鸥); Qian HJ(钱海杰); Kui RX(奎热西)
2018
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume10Issue:12Pages:10211-10219
SubtypeArticle
AbstractStructure determines material's functionality, and strain tunes the structure. Tuning the coherent epitaxial strain by varying the thickness of the films is a precise route to manipulate the functional properties in the low-dimensional oxide materials. Here, to explore the effects of the coherent epitaxial strain on the properties of SrCoO2.5 thin films, thickness-dependent evolutions of the structural properties and electronic structures were investigated by X-ray diffraction, Raman-spectra, optical absorption spectra, scanning transmission electron microscopy (STEM), and first principles calculations. By increasing the thickness of the SrCoO2.5 films, the c-axis lattice constant decreases, indicating the relaxation of the coherent epitaxial strain. The energy band gap increases and the Raman spectra undergo a substantial softening with the relaxation of the coherent epitaxial strain. From the STEM results, it can be concluded that the strain causes the variation of the oxygen content in the BM-SCO2.5 films, which results in the variation of band gaps with varying the strain. First-principles calculations show that strain-induced changes in bond lengths and angles of the octahedral CoO6 and tetrahedral CoO4 cannot explain the variation band gap. Our findings offer an alternative strategy to manipulate structural and electronic properties by tuning the coherent epitaxial strain in transition-metal oxide thin films.
KeywordSrCoO2.5 thin films epitaxial strain electronic structure Raman scattering first-principle calculations
DOI10.1021/acsami.8b00791
WOS KeywordOXIDE FUEL-CELLS ; TRANSITION-METAL OXIDES ; PHASE-TRANSFORMATION ; OXYGEN VACANCIES ; PEROVSKITE ; CATHODE ; SRCOO3-DELTA ; DIFFRACTION ; CO3O4
Indexed BySCI ; EI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000428972700037
EI Accession Number20181404975925
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285798
Collection多学科研究中心
实验物理中心
粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhao, JL,Guo, HZ,He, X,et al. Manipulating the Structural and Electronic Properties of Epitaxial SrCoO2.5 Thin Films by Tuning the Epitaxial Strain[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(12):10211-10219.
APA Zhao, JL.,Guo, HZ.,He, X.,Zhang, QH.,Gu, L.,...&奎热西.(2018).Manipulating the Structural and Electronic Properties of Epitaxial SrCoO2.5 Thin Films by Tuning the Epitaxial Strain.ACS APPLIED MATERIALS & INTERFACES,10(12),10211-10219.
MLA Zhao, JL,et al."Manipulating the Structural and Electronic Properties of Epitaxial SrCoO2.5 Thin Films by Tuning the Epitaxial Strain".ACS APPLIED MATERIALS & INTERFACES 10.12(2018):10211-10219.
Files in This Item:
File Name/Size DocType Version Access License
20180313.pdf(3692KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao, JL]'s Articles
[Guo, HZ]'s Articles
[He, X]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, JL]'s Articles
[Guo, HZ]'s Articles
[He, X]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, JL]'s Articles
[Guo, HZ]'s Articles
[He, X]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.