Electron Microscopy Studies of Electron-Beam Sensitive PbTe-Based Nanostructures

被引：3

作者：

Falqui, Andrea ^{[1
]}

Bertoni, Giovanni ^{[1
]}

Genovese, Alessandro ^{[1
]}

Marras, Sergio ^{[1
]}

Malerba, Mario ^{[1
]}

Franchini, Isabella R. ^{[1
,2
]}

Manna, Liberato ^{[1
]}

机构：

[1] Ist Italiano Tecnol, I-16163 Genoa, Italy

[2] CNR INFM, Natl Nanotechnol Lab, I-73100 Lecce, Italy

来源：

MICROSCOPY RESEARCH AND TECHNIQUE | 2010年 / 73卷 / 10期

关键词：

Cs-corrected high resolution transmission electron microscopy; PbTe; quantum dots; scanning transmission electron microscopy; energy-dispersive x-ray spectrometry; DIFFUSION; OXIDE; SEMICONDUCTORS; REDUCTION; NANOWIRES; GROWTH;

D O I：

10.1002/jemt.20843

中图分类号：

R602 [外科病理学、解剖学]; R32 [人体形态学];

学科分类号：

100101 ;

摘要：

PbTe nanocrystals were synthesized and then reacted with a toluene solution containing AuCl3. Depending on the reaction conditions and on the starting PbTe nanocrystals morphology, different kinds of nanostructures have been obtained: single defect-free PbTe nanocrystals with and without an external amourphous oxide shell, crystalline-Au core/amorphous PbxTeyAu, shell structure, large balloon-shaped (or mushroom-shaped) Au domain attached via its apex to the surface of the nanocrystals. Structure and composition of these different types of nanostructure have been studied by means of C-s-corrected High Resolution Transmission Electron Microscopy (HRTEM) and Scanning Transmission Electron Microscopy (STEM) together with Energy Dispersive X-Ray Spectrometry (EDX), respectively. These nanostructures have been found sensitive to the high-intensity electron beam and its effect has been investigated. Microsc. Res. Tech. 73:944-951, 2010. (C) 2010 Wiley-Liss. Inc.

引用

页码：944 / 951

页数：8

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