Transmission electron microscopy of epitaxial PbS nanocrystals on polydiacetylene Langmuir films

被引：23

作者：

Belman, N ^{[1
]}

Berman, A

Ezersky, V

Lifshitz, Y

Golan, Y

机构：

[1] Ben Gurion Univ Negev, Dept Biotechnol Engn, Inst Appl Biosci, IL-84105 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Stadler Minerva Ctr Mesoscop Macromol Engn, IL-84105 Beer Sheva, Israel

[3] Ben Gurion Univ Negev, Ilse Katz Ctr Nanotechnol, IL-84105 Beer Sheva, Israel

[4] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

来源：

NANOTECHNOLOGY | 2004年 / 15卷 / 04期

关键词：

D O I：

10.1088/0957-4484/15/4/036

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly oriented arrays of lead sulfide (PbS) nanocrystals have been prepared in ambient conditions by the exposure of crystalline polydiacetylene (PDA) Langmuir films to H2S gas at the air-PbCl2 solution interface. The nanocrystals were studied by transmission electron microscopy (TEM), electron diffraction (ED), dark field TEM imaging (DF), high resolution TEM (HRTEM) and fast Fourier transform (FFT) analysis of HRTEM images. Three distinct, coexisting orientations were observed with typical nanocrystal morphologies corresponding to each orientation. The <110>(PbS) direction was aligned parallel to the PDA linear direction for all orientations, indicating a template-directed growth for the PbS/PDA system.

引用

页码：S316 / S321

页数：6

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