Metallic back-contact interface design in photoelectrochemical devices

2016 ◽  
Vol 4 (38) ◽  
pp. 8989-8996 ◽  
Author(s):  
Ofer Neufeld ◽  
Almog S. Reshef ◽  
Leora Schein-Lubomirsky ◽  
Maytal Caspary Toroker
Keyword(s):  
Electronic Structure ◽  
Metal Oxide ◽  
Structure Analysis ◽  
Interface Design ◽  
Back Contact ◽  
Contact Interface ◽  
Oxide Interfaces ◽  
Metal Metal

DFT+U electronic structure analysis for a set of metal/metal-oxide interfaces that are important for a variety of electronic applications.

Role of Metal-Oxide Interface in Determining the Spin Polarization of Magnetic Tunnel Junctions

Science ◽  
1999 ◽  
Vol 286 (5439) ◽  
pp. 507-509 ◽  
Author(s):  
Jose Maria De Teresa ◽  
Agnès Barthélémy ◽  
Albert Fert ◽  
Jean Pierre Contour ◽  
François Montaigne ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Metal Oxide ◽  
Spin Polarization ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Ferromagnetic Transition ◽  
Oxide Interface ◽  
Oxide Interfaces ◽  
Structure Of Metal

The role of the metal-oxide interface in determining the spin polarization of electrons tunneling from or into ferromagnetic transition metals in magnetic tunnel junctions is reported. The spin polarization of cobalt in tunnel junctions with an alumina barrier is positive, but it is negative when the barrier is strontium titanate or cerium lanthanite. The results are ascribed to bonding effects at the transition metal–barrier interface. The influence of the electronic structure of metal-oxide interfaces on the spin polarization raises interesting fundamental problems and opens new ways to optimize the magnetoresistance of tunnel junctions.

scholarly journals Strong metal–metal interaction and bonding nature in metal/oxide interfaces with large mismatches

2019 ◽  
Vol 179 ◽  
pp. 237-246 ◽  
Author(s):  
Hongping Li ◽  
Mitsuhiro Saito ◽  
Chunlin Chen ◽  
Kazutoshi Inoue ◽  
Kazuto Akagi ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxide Interfaces ◽  
Metal Interaction ◽  
Metal Metal

Metal/Metal-Oxide Interfaces: How Metal Contacts Affect the Work Function and Band Structure of MoO3

2012 ◽  
Vol 23 (2) ◽  
pp. 215-226 ◽  
Author(s):  
Mark T. Greiner ◽  
Lily Chai ◽  
Michael G. Helander ◽  
Wing-Man Tang ◽  
Zheng-Hong Lu
Keyword(s):  
Band Structure ◽  
Metal Oxide ◽  
Work Function ◽  
Metal Contacts ◽  
Oxide Interfaces ◽  
Metal Metal

Structural Relaxations At Metal / Metal Oxide Interfaces

1991 ◽  
Vol 238 ◽  
Author(s):  
W. Mader
Keyword(s):  
Metal Oxide ◽  
Relative Strength ◽  
Model Systems ◽  
Misfit Dislocations ◽  
Orientation Relationships ◽  
Oxide Systems ◽  
Oxide Interfaces ◽  
Metal Metal ◽  
High Resolution Tem ◽  
Interacting Systems

ABSTRACTRecent work is reviewed on the structure of metal/metal oxide interfaces in model systems with well defined orientation relationships and boundary inclination. Structural relaxations established upon interface formation may be described as misfit dislocations which can be investigated using conventional and high resolution TEM. The conditions for obtaining informations at an atomistic scale using HRTEM are critically discussed. Specifically, geometrical restrictions are found to be critical in HRTEM study of {111} interfaces in fee metal -fee oxide systems. Different misfit dislocation networks at {100} interfaces in fee metal - fee oxide systems were observed which may be correlated to the relative strength of metal-anion and metal-cation bonds at the interface. In strongly interacting systems misfit dislocations can possess an equilibrium stand-off distance from the interface. In the system Nb-Al2O3 the interface is shown to be coherent by the registry of atomic columns adjacent to the interface. In this configuration energy is minimized by unbroken strong interfacial bonds and misfit localization in the elastically softer metal.

Electronic structure at transition metal phthalocyanine-transition metal oxide interfaces: Cobalt phthalocyanine on epitaxial MnO films

2015 ◽  
Vol 142 (10) ◽  
pp. 101918 ◽  
Author(s):  
Mathias Glaser ◽  
Heiko Peisert ◽  
Hilmar Adler ◽  
Umut Aygül ◽  
Milutin Ivanovic ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Cobalt Phthalocyanine ◽  
Metal Phthalocyanine ◽  
Oxide Interfaces

A Rapid Specimen Preparation Technique For Cross-Section Tem Investigation Of Semiconductors and Metals

1987 ◽  
Vol 115 ◽  
Author(s):  
J. Vanhellemont ◽  
H. Bender ◽  
L. Rossou
Keyword(s):  
Metal Oxide ◽  
Cross Section ◽  
Compound Semiconductors ◽  
Layered Structures ◽  
Specimen Preparation ◽  
Silicon Compound ◽  
Preparation Technique ◽  
Oxide Interfaces ◽  
Wide Applicability ◽  
Metal Metal

ABSTRACTA simple and rapid specimen preparation technique for the cross section TEM investigation of layered structures is discussed. Its wide applicability is illustrated for the investigation of processed silicon, compound semiconductors, silicon on quartz and also for metal/metal oxide interfaces.

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