Growth of Cu2–xSe–CuPt and Cu1.1S–Pt Hybrid Nanoparticles
Growth of Cu2–xSe–CuPt and Cu1.1S–Pt Hybrid Nanoparticles
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DOI：
10.1021/acs.jpcc.6b05574
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发表时间：
2016-09
影响因子：
3.7
通讯作者：
A. Wolf;Dominik Hinrichs;J. Sann;J. F. Miethe;N. Bigall;Dirk Dorfs
中科院分区：
文献类型：
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作者：
A. Wolf;Dominik Hinrichs;J. Sann;J. F. Miethe;N. Bigall;Dirk Dorfs
铜硫属化合物由于其丰富的元素和低毒性而成为研究的热点。特别是，等离子体Cu 2-xSe和Cu1.1S纳米颗粒代表了最近的研究工作的主要课题，由于其局部表面等离子体共振（LSPR）的合成后可调性。在本文中，我们描述了Cu 2-xSe-CuPt和Cu 1. 1 S-Pt杂化纳米粒子的生长。在这两个系统中，我们调查淬火的LSPR有关的Pt比率。所得的Cu 2-xSe-CuPt混合颗粒在生长过程中形成立方CuPt域。在Cu1.1S片晶上，形成几个2-3 nm大小的Pt畴。两个系统的变化最终导致LSPR几乎完全阻尼。硫族化物域以及金属域的结构变化进行了深入分析，并与混合系统的LSPR的变化。
Copper chalcogenides are the focus of research due to their abundant elements and their low toxicity. In particular, plasmonic Cu2–xSe and Cu1.1S NPs represent a main topic of recent research efforts due to the postsynthetic tunability of their localized surface plasmon resonance (LSPR). In this paper, we describe the growth of Cu2–xSe–CuPt and Cu1.1S–Pt hybrid nanoparticles. In both systems we investigate the quenching of the LSPR in relation to the Pt ratios. The resulting Cu2–xSe–CuPt hybrid particles form a cubic CuPt domain during the growth process. On the Cu1.1S platelets, several, 2–3 nm sized Pt domains are formed. The changes for both systems finally result in a nearly complete damping of the LSPRs. The structural changes of the chalcogenide domain as well as of the metal domain are analyzed in depth and are related to the changes in the LSPRs of the hybrid systems.