Stoichiometry Engineering of Monoclinic to Rutile Phase Transition in Suspended Single Crystalline Vanadium Dioxide Nanobeams

Nano Letters ◽  
2011 ◽  
Vol 11 (4) ◽  
pp. 1443-1447 ◽  
Author(s):  
Shixiong Zhang ◽  
In Soo Kim ◽  
Lincoln J. Lauhon
Keyword(s):  
Phase Transition ◽  
Vanadium Dioxide ◽  
Rutile Phase ◽  
Single Crystalline ◽  
Vanadium Dioxide Nanobeams

scholarly journals Phase management in single-crystalline vanadium dioxide beams

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Run Shi ◽  
Yong Chen ◽  
Xiangbin Cai ◽  
Qing Lian ◽  
Zhuoqiong Zhang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Vanadium Dioxide ◽  
Temperature Phase ◽  
Metal Insulator ◽  
Single Crystalline ◽  
Submicron Scale ◽  
Engineering Strategy ◽  
Improved Performance ◽  
Effective Phase ◽  
Two Sides

AbstractA systematic study of various metal-insulator transition (MIT) associated phases of VO2, including metallic R phase and insulating phases (T, M1, M2), is required to uncover the physics of MIT and trigger their promising applications. Here, through an oxide inhibitor-assisted stoichiometry engineering, we show that all the insulating phases can be selectively stabilized in single-crystalline VO2 beams at room temperature. The stoichiometry engineering strategy also provides precise spatial control of the phase configurations in as-grown VO2 beams at the submicron-scale, introducing a fresh concept of phase transition route devices. For instance, the combination of different phase transition routes at the two sides of VO2 beams gives birth to a family of single-crystalline VO2 actuators with highly improved performance and functional diversity. This work provides a substantial understanding of the stoichiometry-temperature phase diagram and a stoichiometry engineering strategy for the effective phase management of VO2.

Hydrogen-Induced Morphotropic Phase Transformation of Single-Crystalline Vanadium Dioxide Nanobeams

Nano Letters ◽  
2013 ◽  
Vol 13 (4) ◽  
pp. 1822-1828 ◽  
Author(s):  
Woong-Ki Hong ◽  
Jong Bae Park ◽  
Jongwon Yoon ◽  
Bong-Joong Kim ◽  
Jung Inn Sohn ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Vanadium Dioxide ◽  
Single Crystalline ◽  
Vanadium Dioxide Nanobeams

Molybdenum substitutional doping and its effects on phase transition properties in single crystalline vanadium dioxide thin film

1999 ◽  
Vol 86 (9) ◽  
pp. 5311-5313 ◽  
Author(s):  
Z. P. Wu ◽  
A. Miyashita ◽  
S. Yamamoto ◽  
H. Abe ◽  
I. Nashiyama ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transition ◽  
Vanadium Dioxide ◽  
Single Crystalline ◽  
Substitutional Doping

Probing the photothermally induced phase transitions in single-crystalline vanadium dioxide nanobeams

2013 ◽  
Vol 24 (34) ◽  
pp. 345701 ◽  
Author(s):  
Sung-Jin Chang ◽  
Woong-Ki Hong ◽  
Hae Jin Kim ◽  
Jin Bae Lee ◽  
Jongwon Yoon ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Vanadium Dioxide ◽  
Single Crystalline ◽  
Vanadium Dioxide Nanobeams

scholarly journals Synthesis and photocatalytic properties of Sn–TiO2 nanomaterials

2020 ◽  
Vol 10 (01n02) ◽  
pp. 2060018
Author(s):  
E. M. Bayan ◽  
T. G. Lupeiko ◽  
L. E. Pustovaya ◽  
M. G. Volkova
Keyword(s):  
Phase Transition ◽  
Thermal Stability ◽  
Sol Gel ◽  
Rutile Phase ◽  
Photocatalytic Properties ◽  
Light Activation ◽  
X Ray ◽  
Tio2 Nanomaterials ◽  
Visible Light Activation ◽  
Thermal Stability Of

Sn-doped TiO2 nanomaterials were synthesized by sol–gel method. It was shown the phase compositions and phase transitions change with the introduction of different tin amounts (0.5–20[Formula: see text]mol.%). X-ray powder diffraction was used to study the effect of different tin amounts on the anatase–rutile phase transition. It was found that the introduction of ions increases the thermal stability of anatase modifications. The material’s photocatalytic activity was studied in reaction with a model pollutant (methylene blue) photodegradation under UV and visible light activation. The best photocatalytic properties were shown for material, which contains 5[Formula: see text]mol.% of Sn.

Optical Switching of Coherent VO2 Precipitates Embedded in Sapphire

1995 ◽  
Vol 396 ◽  
Author(s):  
L. A. Gea ◽  
L. A. Boatner ◽  
J. D. Budai ◽  
R. A. Zuhr
Keyword(s):  
Phase Transition ◽  
Vanadium Dioxide ◽  
Thermal Processing ◽  
Optical Switching ◽  
Optical Transmission ◽  
Structural Phase ◽  
Switching Behavior ◽  
New Type ◽  
Single Crystal Sapphire ◽  
Smart Surface

AbstractIn this work, we report the formation of a new type of active or “smart” surface that is produced by ion implantation and thermal processing. By co-implanting vanadium and oxygen into a single-crystal sapphire substrate and annealing the system under appropriate conditions, it was possible to form buried precipitates of vanadium dioxide that were crystallographically oriented with respect to the host AI2O3 lattice. The implanted VO2 precipitate system undergoes a structural phase transition that is accompanied by large variations in the optical transmission which are comparable to those observed for thin films of VO2 deposited on sapphire. Co-implantation with oxygen was found to be necessary to ensure good optical switching behavior.

Unfolding the Anatase-to-Rutile Phase Transition in TiO2 Nanotubes Using X-ray Spectroscopy and Spectromicroscopy

2016 ◽  
Vol 120 (38) ◽  
pp. 22079-22087 ◽  
Author(s):  
Jun Li ◽  
Zhiqiang Wang ◽  
Jian Wang ◽  
Tsun-Kong Sham
Keyword(s):  
Phase Transition ◽  
Tio2 Nanotubes ◽  
Rutile Phase ◽  
X Ray
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