Controlled Solvothermal Routes to Hierarchical 3D Superparticles of Nanoscopic CdS
Controlled Solvothermal Routes to Hierarchical 3D Superparticles of Nanoscopic CdS
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DOI：
10.1021/acs.chemmater.5b00586
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发表时间：
2015-05
影响因子：
8.6
通讯作者：
Tetyana I Levchenko;C. Kübel;Di Wang;Bahareh Khalili Najafabadi;Yining Huang;J. Corrigan
中科院分区：
文献类型：
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作者：
Tetyana I Levchenko;C. Kübel;Di Wang;Bahareh Khalili Najafabadi;Yining Huang;J. Corrigan
由金属或半导体纳米团簇自组装而成的微米级超粒子，可用作制备功能材料的便捷构建块，利用量子限制以及纳米成分之间的耦合产生的电子和光学特性。在此，我们描述了一种简单的途径，通过容易制备的苯硫酚镉络合物 (Me4N)2[Cd(SPh)4] 的热诱导转化来制备尺寸为 1.9 nm 的单分散 CdS 纳米团簇的结晶立方超粒子。此外，我们通过由尺寸为 2.3 nm 的单个纳米团簇组成的球形 CdS 超粒子的制备和表征，说明了额外的季铵盐对所形成的纳米团簇的尺寸和分散性以及其自组装成二级结构的性质的影响。有关形成、结构表征的详细信息（通过粉末和单晶 X 射线衍射、HRTE...
Micrometer-sized superparticles, self-assembled from metallic or semiconducting nanoclusters, can be used as convenient building blocks for preparing functional materials, utilizing the electronic and optical properties resulting from the quantum confinement as well as from the coupling between nanoscopic constituents. Herein, we describe a facile route to prepare crystalline, cubic superparticles of monodisperse nanoclusters of CdS 1.9 nm in size by means of the thermally induced conversion of the readily prepared cadmium thiophenolate complex (Me4N)2[Cd(SPh)4]. Furthermore, we illustrate the effects that additional quaternary ammonium salts can have on the size and dispersity of the nanoclusters formed and on the nature of their self-assembly into secondary structures, with the preparation and characterization of spherical superparticles of CdS, composed of individual nanoclusters 2.3 nm in size. Details on the formation, structural characterization (via powder and single crystal X-ray diffraction, HRTE...