Morphological Changes and Multicolor Photochromism of Ag Nanoparticles Deposited on Single-crystalline TiO2 Surfaces

2007 ◽  
Vol 19 (19) ◽  
pp. 2802-2806 ◽  
Author(s):  
K. Matsubara ◽  
T. Tatsuma
Keyword(s):  
Ag Nanoparticles ◽  
Morphological Changes ◽  
Single Crystalline

scholarly journals When More Is Less: Plastic Weakening of Single Crystalline Ag Nanoparticles by the Polycrystalline Au Shell

ACS Nano ◽  
2021 ◽  
Author(s):  
Amit Sharma ◽  
Jonathan Amodeo ◽  
Nimrod Gazit ◽  
Yuanshen Qi ◽  
Olivier Thomas ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Single Crystalline

Improved SERS performance of single-crystalline TiO2 nanosheet arrays with coexposed {001} and {101} facets decorated with Ag nanoparticles

2017 ◽  
Vol 242 ◽  
pp. 932-939 ◽  
Author(s):  
Lei Yang ◽  
Weihua Wang ◽  
Haiyan Jiang ◽  
Qianghua Zhang ◽  
Huihui Shan ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Single Crystalline ◽  
Nanosheet Arrays

Bi- and Uniaxially Oriented Growth and Plasmon Resonance Properties of Anisotropic Ag Nanoparticles on Single Crystalline TiO2 Surfaces

2009 ◽  
Vol 113 (12) ◽  
pp. 4758-4762 ◽  
Author(s):  
Emiko Kazuma ◽  
Kazuki Matsubara ◽  
K. Lance Kelly ◽  
Nobuyuki Sakai ◽  
Tetsu Tatsuma
Keyword(s):  
Plasmon Resonance ◽  
Ag Nanoparticles ◽  
Oriented Growth ◽  
Single Crystalline ◽  
Resonance Properties

scholarly journals Controlled growth of single-crystalline metal nanowires via thermomigration across a nanoscale junction

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
De-Gang Xie ◽  
Zhi-Yu Nie ◽  
Shuhei Shinzato ◽  
Yue-Qing Yang ◽  
Feng-Xian Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Gradient ◽  
Morphological Changes ◽  
Back Stress ◽  
Solid Substrate ◽  
Metal Nanowires ◽  
Nanowire Growth ◽  
Single Crystalline ◽  
Czochralski Crystal Growth ◽  
Crystalline Metal

Abstract Mass transport driven by temperature gradient is commonly seen in fluids. However, here we demonstrate that when drawing a cold nano-tip off a hot solid substrate, thermomigration can be so rampant that it can be exploited for producing single-crystalline aluminum, copper, silver and tin nanowires. This demonstrates that in nanoscale objects, solids can mimic liquids in rapid morphological changes, by virtue of fast surface diffusion across short distances. During uniform growth, a thin neck-shaped ligament containing a grain boundary (GB) usually forms between the hot and the cold ends, sustaining an extremely high temperature gradient that should have driven even larger mass flux, if not counteracted by the relative sluggishness of plating into the GB and the resulting back stress. This GB-containing ligament is quite robust and can adapt to varying drawing directions and velocities, imparting good controllability to the nanowire growth in a manner akin to Czochralski crystal growth.

Surface chemistry and growth mechanism of highly oriented, single crystalline Nb-doped TiO2 nanorods

CrystEngComm ◽  
2020 ◽  
Vol 22 (13) ◽  
pp. 2380-2388 ◽  
Author(s):  
S. M. Mokhtar ◽  
M. K. Ahmad ◽  
S. Harish ◽  
N. K. A. Hamed ◽  
M. Shimomura
Keyword(s):  
Film Thickness ◽  
Surface Chemistry ◽  
Growth Mechanism ◽  
Carrier Transport ◽  
Morphological Changes ◽  
Tio2 Nanorods ◽  
Nucleation Density ◽  
Single Crystalline ◽  
Doped Tio2 ◽  
Nb Doping

The effect of the Nb doping on morphological changes in TiO2 nanorods by hydrothermal growth and its enhanced carrier transport were investigated. The nanorod diameter, film thickness, nucleation density, and photocurrent are discussed.

Interaction of Gallium with Copper Surfaces

1971 ◽  
Vol 29 ◽  
pp. 196-197
Author(s):  
Y. T. Chen ◽  
K. R. Lawless
Keyword(s):  
Epitaxial Growth ◽  
Structural Changes ◽  
Early Stage ◽  
Morphological Changes ◽  
High Energy ◽  
Transmission Microscopy ◽  
Single Crystalline ◽  
Alloy Films ◽  
Copper Surfaces

The interaction of gallium with single crystalline copper surfaces has been investigated by means of high energy glancing angle electron diffraction, transmission microscopy and metallography. Surface structural changes and morphological changes were both recorded. Gallium was deposited in-situ onto both bulk single crystalline copper surfaces and thin film Cu surfaces grown in-situ on (100) NaCl surface inside the HEED apparatus.Cu-Ga alloy films were observed to grow epitaxially at room temperature on clean (111), (001) and (110) copper surfaces. The epitaxial growth was obgerved only with a deposition rate for Ga of approximately 30 A/min. and on clean copper surfaces. No epitaxial growth of Cu-Ga alloy films was observed on surfaces covered with cuprous oxide. Higher deposition rates always gave diffuse ring type patterns. An early stage ordered ʓ h.c.p. phase was observed to grow on Cu (111) face. A later stage Ø tetragonal phase was observed to grow on all three faces of Cu with three orientations on the (111) face, four major orientations on the (001) face and two orientations on the (110) face.

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