Fabrication of Noble metal-semiconductor hybrid nanostructures using phase transfer

作     者：Tanushree Bala Ajay Singh Ambarish Sanyal Catriona O'Sullivan Fathima Laffir Claudia Coughlan Kevin M. Ryan 

作者机构：Materials and Surface Science Institute and Department of Chemical and Environmental Sciences University of Limerick Limerick Ireland SFI-Strategic Research Cluster in Solar Energy Research University of Limerick Ireland 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2013年第6卷第2期

页      面：121-130页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：support by Science Foundation Ireland (SFI) funding from INSPIRE are gratefully acknowledged CRNN, CU 

主　　题：semiconductor-metalhybrids Ag tips Au tips phase transfer 

摘      要：An easy and effective solution based procedure for the synthesis of noble metal （both Au and Ag） tipped semiconductor nanomaterials is demonstrated where the metal precursors are taken in water and the semiconductors in organic medium, exploiting the phase transfer and reducing capability of suitably chosen ligands. The phase tranfer route is a generalised approach to form either Ag or Au tips on cadmium chalcogenide nanoparticles and nanorods. While multiple dots of noble metals are formed on the semiconductor nanomaterials initiall~ these coalesce into larger islands with time. The hybrids are characterized by transmission electron microscopy （TEM）, X-ray diffraction （XRD）, photoluminescence （PL）, ultraviolet-visible spectroscopy （UV-vis） and X-ray photoelectron spectroscopy （XPS）. A detailed FTIR analysis was also carried out to delineate the role of the ligands in the synthesis.