Manipulation of Optical Transmittance by Ordered-Oxygen-Vacancy in Epitaxial LaBaCo2O5.5+delta Thin Films

	Manipulation of Optical Transmittance by Ordered-Oxygen-Vacancy in Epitaxial LaBaCo2O5.5+delta Thin Films
	Cheng, S.; J. B. Lu; D. Han; M. Liu; X. L. Lu; C. R. Ma; S. B. Zhang and C. L. Chen
	2016
发表期刊	Scientific Reports
卷号	6
摘要	Giant optical transmittance changes of over 300% in wide wavelength range from 500 nm to 2500 nm were observed in LaBaCo2O5.5+delta thin films annealed in air and ethanol ambient, respectively. The reduction process induces high density of ordered oxygen vacancies and the formation of LaBaCo2O5.5 (delta = 0) structure evidenced by aberration-corrected transmission electron microscopy. Moreover, the first-principles calculations reveal the origin and mechanism of optical transmittance enhancement in LaBaCo2O5.5 (delta = 0), which exhibits quite different energy band structure compared to that of LaBaCo2O6 (delta = 0.5). The discrepancy of energy band structure was thought to be the direct reason for the enhancement of optical transmission in reducing ambient. Hence, LaBaCo2O5.5+delta thin films show great prospect for applications on optical gas sensors in reducing/oxidizing atmosphere.
文章类型	期刊
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56882
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Cheng, S.,J. B. Lu,D. Han,et al. Manipulation of Optical Transmittance by Ordered-Oxygen-Vacancy in Epitaxial LaBaCo2O5.5+delta Thin Films[J]. Scientific Reports,2016,6.
APA	Cheng, S..,J. B. Lu.,D. Han.,M. Liu.,X. L. Lu.,...&S. B. Zhang and C. L. Chen.(2016).Manipulation of Optical Transmittance by Ordered-Oxygen-Vacancy in Epitaxial LaBaCo2O5.5+delta Thin Films.Scientific Reports,6.
MLA	Cheng, S.,et al."Manipulation of Optical Transmittance by Ordered-Oxygen-Vacancy in Epitaxial LaBaCo2O5.5+delta Thin Films".Scientific Reports 6(2016).

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