3D Assembly of Semiconductor and Metal Nanocrystals: Hybrid CdTe/Au Structures with Controlled Content
3D Assembly of Semiconductor and Metal Nanocrystals: Hybrid CdTe/Au Structures with Controlled Content
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DOI：
10.1021/ja202068s
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发表时间：
2011-08-31
影响因子：
15
通讯作者：
Eychmueller, Alexander
中科院分区：
文献类型：
--
作者：
Lesnyak, Vladimir;Wolf, Andre;Eychmueller, Alexander
发展了一种三维金属离子辅助组装纳米粒子的方法。该方法依赖于镉离子和5-巯基甲基四唑的有效络合，用作胶体CdTe和Au纳米颗粒的稳定剂。它能够以一种简单的方式在水介质中形成具有可控和可调组成的混合金属-半导体3D结构。通过临界点干燥，这些组件形成高度多孔的气凝胶。所获得的混合体系结构的特征在于电子显微镜，氮吸附，和光谱方法。
A 3D metal ion assisted assembly of nanoparticles has been developed. The approach relies on the efficient complexation of cadmium ions and 5-mercaptomethyltetrazole employed as the stabilizer of both colloidal CdTe and Au nanoparticles. It enables in a facile way the formation of hybrid metal-semiconductor 3D structures with controllable and tunable composition in aqueous media. By means of critical point drying, these assemblies form highly porous aerogels. The hybrid architectures obtained are characterized by electron microscopy, nitrogen adsorption, and optical spectroscopy methods.