Synthesis of tailored composite nanoparticles in the gas phase

被引：18

作者：

Maisels, A ^{[1
]}

Kruis, FE ^{[1
]}

Fissan, H ^{[1
]}

Rellinghaus, B ^{[1
]}

Zähres, H ^{[1
]}

机构：

[1] Univ Duisburg, D-47057 Duisburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 26期

关键词：

D O I：

10.1063/1.1335843

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on a method to obtain tailored nanoparticle aggregates of two components in the gas phase. The method is based on the modification of the Brownian collision rate by charging the nanoparticles. Particles of different components are charged oppositely in order to obtain composite nanoparticle aggregates via preferential coagulation. The resulting composite aggregates are uncharged, which allows for their separation from both, charged unaggregated particles and charged aggregates of only one component. The mean size and standard deviation of each particle component can be adjusted by means of differential mobility analysis. Experimental results are presented for composites of PbS and Ag. (C) 2000 American Institute of Physics. [S0003-6951(01)01301-8].

引用

页码：4431 / 4433

页数：3

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