Cation Exchange Induced Transformation of InP Magic-Sized Clusters,Chemistry of Materials

当前位置： X-MOL 学术 › Chem. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Cation Exchange Induced Transformation of InP Magic-Sized Clusters
Chemistry of Materials ( IF 7.2 ) Pub Date : 2017-09-02 00:00:00 , DOI: 10.1021/acs.chemmater.7b03075
Jennifer L. Stein ₁ , Molly I. Steimle ₁ , Maxwell W. Terban ₂ , Alessio Petrone ₁ , Simon J. L. Billinge _{2,

3} , Xiaosong Li ₁ , Brandi M. Cossairt ₁

Affiliation

Magic-sized clusters (MSCs) can provide valuable insight into the atomically precise progression of semiconductor nanocrystal transformations. We report the conversion of an InP MSC to a Cd₃P₂ MSC through a cation exchange mechanism and attempt to shed light on the evolution of the physical and electronic structure of the clusters during the transformation. Utilizing a combination of spectroscopic (NMR/UV–vis) and structural characterization (ICP-OES/MS/PXRD/XPS/PDF) tools, we demonstrate retention of the original InP MSC crystal lattice as Z-type ligand exchange initially occurs. Further cation exchange induces lattice relaxation and a significant structural rearrangement. These observations contrast with reports of cation exchange in InP quantum dots, indicating unique reactivity of the InP MSC.

中文翻译：

阳离子交换诱导的InP魔术簇的转变

魔术大小的簇（MSC）可以为半导体纳米晶体转变的原子精确进展提供有价值的见解。我们报告了将InP MSC转换为Cd ₃ P _2的过程MSC通过阳离子交换机制，试图揭示转化过程中簇的物理和电子结构的演变。通过结合使用光谱学（NMR / UV-vis）和结构表征（ICP-OES / MS / PXRD / XPS / PDF）工具，我们证明了最初发生Z型配体交换时保留了原始InP MSC晶格。进一步的阳离子交换引起晶格弛豫和明显的结构重排。这些观察结果与InP量子点中阳离子交换的报道形成对比，表明InP MSC具有独特的反应性。

更新日期：2017-09-04

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11