A rare (3,4)-connected chalcogenide superlattice and its photoelectric effect.
A rare (3,4)-connected chalcogenide superlattice and its photoelectric effect.
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DOI：
10.1002/anie.200703442
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发表时间：
2008
影响因子：
--
通讯作者：
Qichun Zhang;Yang Liu;X. Bu;Tao Wu;P. Feng
中科院分区：
文献类型：
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作者：
Qichun Zhang;Yang Liu;X. Bu;Tao Wu;P. Feng
镉硫族化物簇及其有组织的超晶格在光学、电子和催化应用中的有用性[1]促使研究人员合成不同形状和尺寸的镉硫族化物纳米结构。特别是，自组装的结构定义良好的镉硫族化物集群是感兴趣的，因为它们的均匀的尺寸和精确已知的结构允许量子点结构的尺寸下限的量子限制效应和集体性质的研究。[2-6]不同团簇尺寸和空间结构的可用性可能会导致在光电和催化应用中的新应用。镉硫族化物的一个有趣的性质是它们的光学响应。镉硫系化合物作为光功能材料，在太阳能转换、半导体表面敏化与修饰、纳米电子学等领域得到了广泛的研究。纳米电子器件最终可能取代通信和计算机技术中的微电子器件，它需要将半导体的尺寸减小到纳米级比例。这样的尺寸减小将增强其电子，磁性和光学特性，从而实现新的应用。在纳米结构材料领域，硫族化物簇如[Cd 17 S4-（SPh）28] 2n（称为C1簇，被表示为Cn的一系列加帽超四面体簇的第一成员，n= 1，2，3.）和[Cd 32 Se 14（SePh）36（PPh 3）4]（C2）位于纳米颗粒尺寸谱的极低极限。[7]因此，这些单独的簇和它们的自组装共价超晶格的光学响应可能在纳米电子学中具有潜在的应用。
The usefulness of cadmium chalcogenide clusters and their organized superlattices in optical, electronic, and catalytic applications [1] has prompted researchers to synthesize cadmium chalcogenide nanostructures of different shapes and sizes. In particular, self-assembly of structurally well-defined cadmium chalcogenide clusters is of interest because their uniform sizes and precisely known structures allow the study of quantum-confinement effects and collective properties at the lower size limit of quantum-dot structures.[2–6] The availability of different cluster sizes and their various spatial organizations may lead to new applications in optoelectronic and catalytic applications.An interesting property of cadmium chalcogenides is their optical response. As photofunctional materials, the cadmium chalcogenide system has been widely studied in solar-energy conversion, semiconductor surface sensitization and modification, and nanoelectronics. Nanoelectronic devices, which may eventually replace microelectronics in communications and computer technology, require the size of a semiconductor to be reduced to nanoscale proportions. Such a size reduction will enhance its electronic, magnetic, and optical properties, and thus enable new applications. In the area of nanostructured materials, chalcogenide clusters such as [Cd17S4-(SPh) 28] 2À (called C1 cluster, the first member of the series of capped supertetrahedral clusters denoted as Cn, n= 1, 2, 3…) and [Cd32Se14 (SePh) 36 (PPh3) 4](C2) lie at the extreme lower limit of the size spectrum of nanoparticles.[7] Thus, the optical response of these individual clusters and their self-assembled covalent superlattices may have potential applications in nanoelectronics.