scholarly journals Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films

2017 ◽  
Vol 110 (9) ◽  
pp. 093102 ◽  
Author(s):  
Zach Harrell ◽  
Erik Enriquez ◽  
Aiping Chen ◽  
Paul Dowden ◽  
Brennan Mace ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Oxygen Content ◽  
Double Perovskite

Magnetic and electronic properties of B -site-ordered double-perovskite oxide La2CrMnO6 thin films

2019 ◽  
Vol 99 (23) ◽  
Author(s):  
K. Yoshimatsu ◽  
J. Ishimaru ◽  
K. Watarai ◽  
K. Yamamoto ◽  
Y. Hirata ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Double Perovskite ◽  
Perovskite Oxide

scholarly journals Strain-induced changes of the electronic properties of B -site ordered double-perovskite Sr2CoIrO6 thin films

2018 ◽  
Vol 97 (20) ◽  
Author(s):  
S. Esser ◽  
C. F. Chang ◽  
C.-Y. Kuo ◽  
S. Merten ◽  
V. Roddatis ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Double Perovskite ◽  
Induced Changes

scholarly journals Design of Promising Heptacoordinated Organotin (IV) Complexes-PEDOT: PSS-Based Composite for New-Generation Optoelectronic Devices Applications

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1023
Author(s):  
María Elena Sánchez-Vergara ◽  
Leon Hamui ◽  
Elizabeth Gómez ◽  
Guillermo M. Chans ◽  
José Miguel Galván-Hidalgo
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Optoelectronic Devices ◽  
Density Variation ◽  
Structural Modifications ◽  
Mixed Ligands ◽  
Vis Spectroscopy ◽  
Group A ◽  
Poly Styrene Sulfonate ◽  
New Generation

The synthesis of four mononuclear heptacoordinated organotin (IV) complexes of mixed ligands derived from tridentated Schiff bases and pyrazinecarboxylic acid is reported. This organotin (IV) complexes were prepared by using a multicomponent reaction, the reaction proceeds in moderate to good yields (64% to 82%). The complexes were characterized by UV-vis spectroscopy, IR spectroscopy, mass spectrometry, 1H, 13C, and 119Sn nuclear magnetic resonance (NMR) and elemental analysis. The spectroscopic analysis revealed that the tin atom is seven-coordinate in solution and that the carboxyl group acts as monodentate ligand. To determine the effect of the substituent on the optoelectronic properties of the organotin (IV) complexes, thin films were deposited, and the optical bandgap was obtained. A bandgap between 1.88 and 1.98 eV for the pellets and between 1.23 and 1.40 eV for the thin films was obtained. Later, different types of optoelectronic devices with architecture “contacts up/base down” were manufactured and analyzed to compare their electrical behavior. The design was intended to generate a composite based on the synthetized heptacoordinated organotin (IV) complexes embedded on the poly(3,4-ethylenedyoxithiophene)-poly(styrene sulfonate) (PEDOT:PSS). A Schottky curve at low voltages (<1.5 mV) and a current density variation of as much as ~3 × 10−5 A/cm2 at ~1.1 mV was observed. A generated photocurrent was of approximately 10−7 A and a photoconductivity between 4 × 10−9 and 7 × 10−9 S/cm for all the manufactured structures. The structural modifications on organotin (IV) complexes were focused on the electronic nature of the substituents and their ability to contribute to the electronic delocalization via the π system. The presence of the methyl group, a modest electron donor, or the non-substitution on the aromatic ring, has a reduced effect on the electronic properties of the molecule. However, a strong effect in the electronic properties of the material can be inferred from the presence of electron-withdrawing substituents like chlorine, able to reduce the gap energies.

Electronic properties of Cr1−xAlxN thin films deposited by reactive magnetron sputtering

2002 ◽  
Vol 420-421 ◽  
pp. 312-317 ◽  
Author(s):  
R Sanjinés ◽  
O Banakh ◽  
C Rojas ◽  
P.E Schmid ◽  
F Lévy
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Electronic Properties ◽  
Reactive Magnetron Sputtering ◽  
Reactive Magnetron

RBS study of epitaxially grown thin films of the double perovskite La2NiMnO6

2007 ◽  
Vol 261 (1-2) ◽  
pp. 686-689 ◽  
Author(s):  
S. Budak ◽  
C. Muntele ◽  
I. Muntele ◽  
H. Guo ◽  
A. Gupta ◽  
...  
Keyword(s):  
Thin Films ◽  
Double Perovskite

Properties of Tin Oxide Films Prepared by MOCVD

2004 ◽  
Vol 449-452 ◽  
pp. 997-1000 ◽  
Author(s):  
Gwang Pyo Choi ◽  
Yong Joo Park ◽  
Whyo Sup Noh ◽  
Jin Seong Park
Keyword(s):  
Thin Films ◽  
Oxygen Content ◽  
Tin Oxide ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Organic Chemical ◽  
Metal Organic ◽  
Organic Chemical Vapor Deposition ◽  
Tin Oxide Films ◽  
N2 Annealing

Tin oxide thin films were deposited at 375 °C on α-alumina substrate by metal-organic chemical vapor deposition (MOCVD) process. A number of hillocks on the film were formed after air annealing at 500 °C for 30 min and few things in N2 annealing. The oxygen content and the binding energy after air annealing came to close the stoichiometric SnO2. The cauliflower hillocks of the film seem to be formed by the continuous migration of crystallites from a cauliflower grain on the substrate to release the stress due to the increase of oxygen content and volume.

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