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首页> 外文期刊>Chemistry: A European journal >Controlled Synthesis,Growth Mechanism,and Properties of Monodisperse CdS Colloidal Spheres
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Controlled Synthesis,Growth Mechanism,and Properties of Monodisperse CdS Colloidal Spheres

机译：单分散CdS胶体球的合成，生长机理及其性质

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摘要

Highly monodisperse submi-crometer CdS colloidal spheres(CSCS)with a controllable and tunable size(between 80 and 500 nm)have been synthesized through a facile solvother-mal technique.Owing to the controllability of the reaction process,the growth mechanism of the colloidal spheres has been elucidated in detail.The whole growth process can be summarized as homogenous and slow nu- cleation of nanocrystals,formation of "cores" through 3D-oriented attachment of nanocrystals,and further surface-induced growth to monodisperse colloidal spheres through in situ formation and random attachment of addi- tional nanocrystals.It has been demonstrated that the obtained CSCS colloidal particles are able to be assembled into films which show characteristic stop band gaps of photonic crystals.By using the CSCS as a template,Ag2S,Bi2S3,Cu2S,HgS,and Sb2S3 colloidal spheres,which are difficult to obtain directly,have also been prepared successfully through ion exchange.
机译：通过一种简便的溶剂热法合成了高度可控，可调大小（在80-500 nm之间）的高度分散的亚微米级CdS胶体球（CSCS）。由于反应过程的可控性，胶体的生长机理整个生长过程可以概括为：纳米晶体的均匀且缓慢的成核，通过3D定向的纳米晶体附着形成“核”，以及进一步的表面诱导生长，从而通过原位单分散胶体球已经证明，所获得的CSCS胶体颗粒能够组装成具有光子晶体特征性禁带隙的薄膜。通过以CSCS为模板，Ag2S，Bi2S3，Cu2S ，HgS和Sb2S3胶体球难以直接获得，它们也已经通过离子交换成功制备。

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