Microstructures and growth mechanisms of the polycrystalline CaBaCo2O5+δ thin films grown on (001) LaAlO3 substrates

Jun Chi Li; Jiang Hua Chen; Ying Ding; Chun Rui Ma; Chong Lin Chen; Jing Yue Fang; Xue Ao Zhang

doi:10.3969/j.issn.1001G9731.2014.17.010

Microstructures and growth mechanisms of the polycrystalline CaBaCo₂O_5+δ thin films grown on (001) LaAlO₃ substrates

Jun Chi Li
, Jiang Hua Chen
, Ying Ding
, Chun Rui Ma
, Chong Lin Chen
, Jing Yue Fang
, Xue Ao Zhang

Hunan University
University of Texas at San Antonio
National University of Defense Technology

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

1 Scopus citations

Abstract

CaBaCo₂O_5+δ thin films were deposited on (001) LaAlO₃ substrates by pulsed laser deposition. The microstructures of the film and substrate were studied by X-ray diffraction (XRD) and of transmission electron microscopy (TEM). Results show that (1) dislocations and twins appear in the LaAlO₃ substrates, and the (100) wedge-shaped twin was the main type; (2) CaBaCo₂O_5+δ thin film was polycrystalline in nature, and the initial grain structure with a grain size of about 5-8 nm during growth was kept at the bottom of the film. While the grain size at the top of the film was larger, about 11-16 nm. Based on the observation results, a growth mechanism of the film was proposed. Possible processes to improve the film quality have also been discussed.

Original language	English
Pages (from-to)	17050-17053
Number of pages	4
Journal	Gongneng Cailiao/Journal of Functional Materials
Volume	45
Issue number	17
DOIs	https://doi.org/10.3969/j.issn.1001G9731.2014.17.010
State	Published - 15 Sep 2014
Externally published	Yes

Keywords

Growth mechanism
Microstructure
Polycrystalline thin films

Access to Document

10.3969/j.issn.1001G9731.2014.17.010

Cite this

@article{cc01574972834b67858e51bf2720efb1,

title = "Microstructures and growth mechanisms of the polycrystalline CaBaCo2O5+δ thin films grown on (001) LaAlO3 substrates",

abstract = "CaBaCo2O5+δ thin films were deposited on (001) LaAlO3 substrates by pulsed laser deposition. The microstructures of the film and substrate were studied by X-ray diffraction (XRD) and of transmission electron microscopy (TEM). Results show that (1) dislocations and twins appear in the LaAlO3 substrates, and the (100) wedge-shaped twin was the main type; (2) CaBaCo2O5+δ thin film was polycrystalline in nature, and the initial grain structure with a grain size of about 5-8 nm during growth was kept at the bottom of the film. While the grain size at the top of the film was larger, about 11-16 nm. Based on the observation results, a growth mechanism of the film was proposed. Possible processes to improve the film quality have also been discussed.",

keywords = "Growth mechanism, Microstructure, Polycrystalline thin films",

author = "Li, \{Jun Chi\} and Chen, \{Jiang Hua\} and Ying Ding and Ma, \{Chun Rui\} and Chen, \{Chong Lin\} and Fang, \{Jing Yue\} and Zhang, \{Xue Ao\}",

year = "2014",

month = sep,

day = "15",

doi = "10.3969/j.issn.1001G9731.2014.17.010",

language = "英语",

volume = "45",

pages = "17050--17053",

journal = "Gongneng Cailiao/Journal of Functional Materials",

issn = "1001-9731",

publisher = "Journal of Functional Materials",

number = "17",

}

TY - JOUR

T1 - Microstructures and growth mechanisms of the polycrystalline CaBaCo2O5+δ thin films grown on (001) LaAlO3 substrates

AU - Li, Jun Chi

AU - Chen, Jiang Hua

AU - Ding, Ying

AU - Ma, Chun Rui

AU - Chen, Chong Lin

AU - Fang, Jing Yue

AU - Zhang, Xue Ao

PY - 2014/9/15

Y1 - 2014/9/15

N2 - CaBaCo2O5+δ thin films were deposited on (001) LaAlO3 substrates by pulsed laser deposition. The microstructures of the film and substrate were studied by X-ray diffraction (XRD) and of transmission electron microscopy (TEM). Results show that (1) dislocations and twins appear in the LaAlO3 substrates, and the (100) wedge-shaped twin was the main type; (2) CaBaCo2O5+δ thin film was polycrystalline in nature, and the initial grain structure with a grain size of about 5-8 nm during growth was kept at the bottom of the film. While the grain size at the top of the film was larger, about 11-16 nm. Based on the observation results, a growth mechanism of the film was proposed. Possible processes to improve the film quality have also been discussed.

AB - CaBaCo2O5+δ thin films were deposited on (001) LaAlO3 substrates by pulsed laser deposition. The microstructures of the film and substrate were studied by X-ray diffraction (XRD) and of transmission electron microscopy (TEM). Results show that (1) dislocations and twins appear in the LaAlO3 substrates, and the (100) wedge-shaped twin was the main type; (2) CaBaCo2O5+δ thin film was polycrystalline in nature, and the initial grain structure with a grain size of about 5-8 nm during growth was kept at the bottom of the film. While the grain size at the top of the film was larger, about 11-16 nm. Based on the observation results, a growth mechanism of the film was proposed. Possible processes to improve the film quality have also been discussed.

KW - Growth mechanism

KW - Microstructure

KW - Polycrystalline thin films

UR - https://www.scopus.com/pages/publications/84910049040

U2 - 10.3969/j.issn.1001G9731.2014.17.010

DO - 10.3969/j.issn.1001G9731.2014.17.010

M3 - 文章

AN - SCOPUS:84910049040

SN - 1001-9731

VL - 45

SP - 17050

EP - 17053

JO - Gongneng Cailiao/Journal of Functional Materials

JF - Gongneng Cailiao/Journal of Functional Materials

IS - 17

ER -

Microstructures and growth mechanisms of the polycrystalline CaBaCo₂O_5+δ thin films grown on (001) LaAlO₃ substrates

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this