Coalescence between Au nanoparticles as induced by nanocurvature effect and electron beam athermal activation effect

Nanoscale ◽  
2018 ◽  
Vol 10 (17) ◽  
pp. 7978-7983 ◽  
Author(s):  
Liang Cheng ◽  
Xianfang Zhu ◽  
Jiangbin Su
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Room Temperature ◽  
Electron Beam Irradiation ◽  
Au Nanoparticles ◽  
Beam Irradiation ◽  
Activation Effect ◽  
Transmission Electron

The coalescence of two single-crystalline Au nanoparticles on surface of amorphous SiOxnanowire, as induced by electron beam irradiation, wasin situstudied at room temperature in a transmission electron microscope.

Electron-beam irradiation induced conductivity in ZnS nanowires as revealed by in situ transmission electron microscope

2009 ◽  
Vol 106 (3) ◽  
pp. 034302 ◽  
Author(s):  
Baodan Liu ◽  
Yoshio Bando ◽  
Mingsheng Wang ◽  
Chunyi Zhi ◽  
Xiaosheng Fang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Transmission Electron

Electron-beam-induced phase transition in the transmission electron microscope: the case of VO2(B)

CrystEngComm ◽  
2018 ◽  
Vol 20 (43) ◽  
pp. 6857-6860 ◽  
Author(s):  
Chun-Wei Huang ◽  
Shih-Shen Kuo ◽  
Cheng-Lun Hsin
Keyword(s):  
Phase Transition ◽  
Electron Beam ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Electron Beam Irradiation ◽  
Transition Process ◽  
Beam Irradiation ◽  
Transmission Electron ◽  
Phase Transition Process

A phase transition process from VO2(B) to VO2(M1) was made possible under electron beam irradiation without the help of elevating the temperature.

Microstructure of ZnO shell on Zn nanoparticles

2004 ◽  
Vol 19 (10) ◽  
pp. 3062-3067 ◽  
Author(s):  
Haiping Sun ◽  
Xiaoqing Pan
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
High Resolution ◽  
Room Temperature ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Lattice Imaging ◽  
Transmission Electron ◽  
Small Rotation ◽  
Zn Nanoparticles

When exposed to air at room temperature, Zn nanoparticles oxidize gradually to form crystalline ZnO shells with a thickness of a few nanometers. Electron diffraction and high-resolution lattice imaging revealed that the ZnO layer on the Zn {0001} surface is composed of many epitaxial domains with small rotation angles relative to the lattice of the Zn core. The oxidized Zn particle bends when irradiated by the electron beam in a transmission electron microscope. This is due to the increase of internal stress in the ZnO layer as a result of the realignment of adjacent domains under electron beam irradiation. Corrosion of Zn nanoparticles was observed and the scaling and spalling start to occur on the {1010} prismatic faces.

In situformation of bismuth nanoparticles through electron-beam irradiation in a transmission electron microscope

2007 ◽  
Vol 18 (33) ◽  
pp. 335604 ◽  
Author(s):  
S Sepulveda-Guzman ◽  
N Elizondo-Villarreal ◽  
D Ferrer ◽  
A Torres-Castro ◽  
X Gao ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Bismuth Nanoparticles ◽  
Transmission Electron

In Situ Real Time Observation of Chemical Vapor Deposition Using an Environmental Transmission Electron Microscope

1995 ◽  
Vol 404 ◽  
Author(s):  
Jeff Drucker ◽  
Renu Sharma ◽  
Karl Weiss ◽  
B. L. Ramakrishna ◽  
John Kouvetakis
Keyword(s):  
Growth Rate ◽  
Electron Beam ◽  
Electron Microscope ◽  
Vapor Deposition ◽  
Electron Beam Irradiation ◽  
Film Growth ◽  
Chemical Vapor ◽  
Beam Irradiation ◽  
Transmission Electron

AbstractMaterial synthesis by chemical vapor deposition (CVD) in a number of material systems has been investigated in real time using an environmental transmission electron microscope (ETEM) with 3.8 Å resolution. Here, we will focus on two metal / insulator systems. Al CVD onto SiO2 from trimethyl amine alane and Au CVD from ethyl (trimethylphosphine) gold (I), also onto SiO2. For Al deposition, dendritic growth was observed for all pressure / substrate temperature combinations investigated for growth on untreated SiO2. Subsequent to reaction of the substrate surface with TiC14, almost immediate continuous Al film growth was observed. Growth rates for the Al film could be measured in situ by monitoring the evolution of the growth front at the Al/vacuum interface. In this system, very little enhancement in the metal film growth rate was observed as a consequence of electron beam irradiation for continuous films grown after TiCl4 pretreatment.. This dramatically contrasts with the case of Au CVD investigated. In this instance, growth rate enhancements of up to 150 times were observed during electron beam irradiation as compared to purely pyrolytic decomposition of the precursor on the insulator surface. This growth rate enhancement decreased monotonically with substrate temperature. We surmise that this effect is related to the ratio of precursor surface residence time prior to ecomposition to the probability of collision from the impinging electron beam.

Sign in / Sign up

Export Citation Format

Share Document