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.

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-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.

High-resolution TEM of fullerenes of different sizes

1992 ◽  
Vol 50 (1) ◽  
pp. 298-299
Author(s):  
Supapan Seraphin ◽  
Dan Zhou ◽  
Jun Jiao ◽  
Lowell D. Lamb ◽  
Donald R. Huffman
Keyword(s):  
Electron Beam ◽  
High Resolution ◽  
Electron Beam Irradiation ◽  
Solid Phase ◽  
Structural Response ◽  
Spectroscopic Characterization ◽  
Carbon Cluster ◽  
Beam Irradiation ◽  
Transmission Electron ◽  
High Resolution Tem

The extraction of macroscopic quantities of the solid phase of the carbon cluster C60 by the technique of Krätschmer, Huffman (KH) et.al. has stimulated a large number of investigations into their physical properties. Recently, further developments have led to the extraction from KH-carbon and subsequent mass-spectroscopic characterization of larger clusters Cn, n = 100 to 330, termed giant fullerenes. Of particular interest are studies into the structure of these giant fullerenes. The paper presented here applies the technique of High-Resolution Transmission Electron Microscopy (HRTEM) to an investigation of the structure of the C60, C70, and giant fullerenes, including their transformation under electron beam irradiation. The results show significant differences in the structural response to electron beam irradiation among fullerenes of different sizes.

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