Journal ArticleDOI
Room temperature rectifying characteristics of epitaxial Y1Ba2Cu3−xZnxO7−δ (x=0.0,0.2) and Nb:SrTiO3 (Nb: 0.05%, 0.1%, 0.5%) heterojunctions
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TLDR
In this paper, the fabrication and electrical characterization of epitaxial metal-semiconductor junctions between Y1Ba2Cu3O7−δ (YBCO) (optimally doped and Zn doped) and (001) Nb:SrTiO3 with different Nb concentrations (0.05, 0.1, and 0.5%).Abstract:
We report on the fabrication and electrical characterization of epitaxial metal-semiconductor junctions between Y1Ba2Cu3O7−δ (YBCO) (optimally doped and Zn doped) and (001) Nb:SrTiO3 with different Nb concentrations (0.05%, 0.1%, and 0.5%). The current-voltage characteristics of such epitaxial junctions are nonlinear and rectifying, and these are dramatically enhanced with decreasing Nb concentration and Zn doping. Indeed, for the case of 0.05% Nb:STO, reverse breakdown voltage as high as −18V(−28V) is realized for optimally doped (Zn doped) YBCO. These data are analyzed within the framework of thermionic emission∕diffusion models for Schottky and metal-insulator-semiconductor-type junctions.read more
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Photovoltaic effect of YBa2Cu3O7−δ/SrTiO3:Nb heterojunction annealed in different oxygen partial pressure
TL;DR: In this article, the photovoltaic effects of this heterojunction were found to be strongly dependent of annealing oxygen partial pressure, and the results indicated that the oxygen concentration of YBCO can be optimized to improve the photiovoltaic behavior of the heterjunction and lead to possible applications in photoelectronic devices and solar cells.
Journal ArticleDOI
Interface and defect structures in YBa2Cu3O7−δ and Nb : SrTiO3 heterojunction
L. F. Fu,Nigel D. Browning,Nigel D. Browning,W. Ramadan,S. B. Ogale,S. B. Ogale,Darshan C. Kundaliya,T. Venkatesan +7 more
TL;DR: YBa2Cu3O7−δ thin films grown on a Nb-doped SrTiO3 substrate by a pulsed laser deposition method were fully characterized by scanning transmission electron microscopy Z-contrast imaging and electron energy loss spectroscopy techniques.
Journal ArticleDOI
Metallic oxide p-I-n junctions with ferroelectric as the barrier
Jie Yuan,H. Wu,Lianzhen Cao,L. Zhao,Kui Jin,B. Y. Zhu,S. J. Zhu,J. P. Zhong,Jianmin Miao,Bingshe Xu,X. Y. Qi,Xianggang Qiu,Xiangfeng Duan,B. R. Zhao +13 more
TL;DR: In this paper, the formation of the metallic oxide p-I-n junctions with the ferroelectric (Ba,Sr)TiO3 (BST) barrier was investigated.
Journal ArticleDOI
Current-voltage characteristics of La(2-x)Sr(x)CuO(4)/Nb-doped SrTiO(3) heterojunctions
TL;DR: Li, XG (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Phys,Hefei 230026, Peoples R China;lixg@ustc.edu.cn as mentioned in this paper
Journal ArticleDOI
Assessing the photocatalytic oxygen evolution reaction of BiFeO3 loaded with IrO2 nanoparticles as cocatalyst
TL;DR: In this article, the authors demonstrate that the poor O2 evolution activity of photocatalytic water splitting of the multiferroics BiFeO3 can be enhanced when a proper cocatalyst like IrO2 nanoparticles are deposited on the surface and proper electron scavenger is used.
References
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Journal ArticleDOI
A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface
TL;DR: A model interface is examined between two insulating perovskite oxides—LaAlO3 and SrTiO3—in which the termination layer at the interface is controlled on an atomic scale, presenting a broad opportunity to tailor low-dimensional charge states by atomically engineered oxide heteroepitaxy.
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Artificial charge-modulationin atomic-scale perovskite titanate superlattices
TL;DR: It is found that a minimum thickness of five LaTiO3 layers is required for the centre titanium site to recover bulk-like electronic properties, and this represents a framework within which the short-length-scale electronic response can be probed and incorporated in thin-film oxide heterostructures.
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Hysteretic current–voltage characteristics and resistance switching at a rectifying Ti∕Pr0.7Ca0.3MnO3 interface
TL;DR: In this article, the vertical transport properties of epitaxial layered structures composed of Pr0.7Ca0.3MnO3(PCMO) sandwiched between SrRuO3 (SRO) bottom electrode and several kinds of top electrodes such as SRO, Pt, Au, Ag, and Ti are characterized.
Journal ArticleDOI
Hysteretic current-voltage characteristics and resistance switching at a rectifying Ti/Pr$_{0.7}$Ca$_{0.3}$MnO$_{3}$ interface
TL;DR: In this article, the vertical transport properties of epitaxial layered structures composed of Pr$0.7}$Ca$ 0.3}$MnO$ 3}$ (PCMO) sandwiched between SRO bottom electrode and several kinds of top electrodes such as SRO, Pt, Au, Ag, and Ti were characterized.