2019
DOI: 10.1002/admi.201901265
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Atomic Scale Understanding of the Epitaxy of Perovskite Oxides on Flexible Mica Substrate

Abstract: The excellent functionalities of perovskite oxides and the growing demands for flexible devices lead to great interests on epitaxial growth of functional oxide films on flexible mica substrates. Understanding the film epitaxy on the substrate with a very different crystal structure is a key issue for the optimization of the film growth and hence properties. Such understanding largely depends on knowing the atomic structure of the interfaces between the films and the substrates. Here, the interface between the … Show more

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Cited by 24 publications
(18 citation statements)
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“…Despite the different cationic rearrangements of these orientations, the epitaxial match is allowed by an almost identical rearrangement of the oxygen sublattices of the two compounds. [100] A similar (111) orientation was also observed for other perovskites thin films deposited on mica (001), such as SRO/BTO, [101] SrVO 3 , [102] Eu-doped 0.94Bi 0.5 Na 0.5 TiO 3 -0.06BaTiO 3 , [99] CaVO 3 /STO, [103] and La 0.7 Sr 0.3 MnO 3 /STO. [104] Nevertheless, other types of orientations and even polycrystalline thin films are reported in literature for perovskite oxides deposited on mica substrates.…”
Section: Mechanical Exfoliationsupporting
confidence: 72%
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“…Despite the different cationic rearrangements of these orientations, the epitaxial match is allowed by an almost identical rearrangement of the oxygen sublattices of the two compounds. [100] A similar (111) orientation was also observed for other perovskites thin films deposited on mica (001), such as SRO/BTO, [101] SrVO 3 , [102] Eu-doped 0.94Bi 0.5 Na 0.5 TiO 3 -0.06BaTiO 3 , [99] CaVO 3 /STO, [103] and La 0.7 Sr 0.3 MnO 3 /STO. [104] Nevertheless, other types of orientations and even polycrystalline thin films are reported in literature for perovskite oxides deposited on mica substrates.…”
Section: Mechanical Exfoliationsupporting
confidence: 72%
“…Moreover, the thin films can be transferred to other substrates thanks to the weak bonds between graphene and the perovskite layer. These results show that graphene-based remote epitaxy has emerged [100] Copyright 2020, Wiley-VCH.…”
Section: Mechanical Exfoliationmentioning
confidence: 70%
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“…Besides the low cost, mica features relatively large atomically flat areas and requires simple sample treatment procedures. Mica has a mineral net-like structure, containing an octahedral complex aluminum layer sandwiched between two tetrahedral SiO-layers [ 112 ]. When it comes in contact with water, potassium ion, which naturally bridge the ionic mineral sheet of mica, dissociates from the surface, leaving the unbalanced negative charge.…”
Section: Surface-assisted Assemblymentioning
confidence: 99%
“…Mica is a typical layered material, composed of layers of aluminosilicate and K + ions alternately, which can be easily separated by cleaving. [26,27] The distribution of K + ions on the mica surface is important in the interfacial crystal growth. [28] Once the polar organic solvent molecules (DMF) are introduced into the space between two mica layers, the interlayer cations (K + ) will be solvated, leading that K + cations move away from the mica surface and diffuse into the solution.…”
Section: Introductionmentioning
confidence: 99%