无机材料学报2019，Vol.34Issue(1)：65-71,7.DOI:10.15541/jim20180255
形貌可控及光学吸收性能可调的钙钛矿型SrTiO3纳米结构的原位生长(英文)
In-situ Synthesis of Perovskite SrTiO3 Nanostructures with Modified Morphology and Tunable Optical Absorption Property
摘要
Abstract
As a perovskite family member, SrTiO3 shows significant applications in the fields of solar cells, photocatalysis, fuel cells and superconducting as a dependence of its crystallinity, morphology, crystal facet and optical properties. In this work, we reported an in-situ synthetic approach of SrTiO3 nanostructures with modified morphology and tunable optical absorption properties based on conventional plasma electrolytic oxidation (PEO) associated with hydrothermal method. The morphology of SrTiO3 nanostructures can be selectively modified from microcubes with smooth facets to ultrathin nanosheets by controlling the concentration of Sr source during PEO process. It is found that both SrTiO3 microcubes and Sr1–δTiO3 nanosheets are well-crystallized single crystals. UV-Vis diffuse reactance spectrum (DRS) measurement reveals that Sr1–δTiO3 nanosheets with thin thickness show obvious blue-shift of absorption edge in comparison with SrTiO3 microcubes due to the size effect. Finally, the morphology evolution and nucleation mechanism of SrTiO3 nanostructures in-situ grown on PEO film is discussed.关键词
钛酸锶/原位生长/微弧氧化法/形貌调控/光学性能Key words
SrTiO3/in-situ growth/plasma electrolytic oxidation/morphology tuning/optical property分类
化学化工引用本文复制引用
刘小元,刘宝丹,姜亚南,王柯,周洋,杨兵,张兴来,姜辛..形貌可控及光学吸收性能可调的钙钛矿型SrTiO3纳米结构的原位生长(英文)[J].无机材料学报,2019,34(1):65-71,7.基金项目
National Natural Science Foundation of China (51702326, 51872296)；Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences (Y2NCA111A1, No.Y3NCA111A1)；Youth Innovation Promotion Association, Chinese Academy of Sciences (Y4NC711171)；Basic Science Innovation Program of Shenyang National Laboratory for Materials Science (2017EP05, 2017RP25) （51702326, 51872296）
