Yang Yuan, Wang Kai, Liang Hai-Wei, Liu Guo-Qiang, Feng Mei, Xu Liang, Liu Jian-Wei, Wang Jin-Long, Yu Shu-Hong
Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, Collaborative Innovation Center of Suzhou Nano Science and Technology, Hefei Science Center, CAS, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
Sci Adv. 2015 Nov 6;1(10):e1500714. doi: 10.1126/sciadv.1500714. eCollection 2015 Nov.
One-dimensional metal chalcogenide nanostructures are important candidates for many technological applications such as photovoltaic and thermoelectric devices. However, the design and synthesis of one-dimensional metal chalcogenide nanostructured materials with controllable components and properties remain a challenge. We report a general chemical transformation process for the synthesis of more than 45 kinds of one-dimensional alloyed/hybrid metal chalcogenide nanostructures inherited from mother template Te x Se y @Se core-shell nanowires with tunable compositions. As many as nine types of monometal chalcogenide alloy nanowires (including AgSeTe, HgSeTe, CuSeTe, BiSeTe, PbSeTe, CdSeTe, SbSeTe, NiSeTe, and CoSeTe) can be synthesized. Alloyed and hybrid nanowires integrated with two or more alloyed metal chalcogenide phases can also be prepared. The compositions of all of these metal chalcogenide nanowires are tunable within a wide range. This protocol provides a new general route for the controllable synthesis of a new generation of one-dimensional metal chalcogenide nanostructures.
一维金属硫族化物纳米结构是许多技术应用（如光伏和热电设备）的重要候选材料。然而，设计和合成具有可控成分和性能的一维金属硫族化物纳米结构材料仍然是一项挑战。我们报道了一种通用的化学转化过程，用于合成超过45种从母模板Tex Sey@Se核壳纳米线继承而来的、具有可调成分的一维合金化/混合金属硫族化物纳米结构。多达九种单金属硫族化物合金纳米线（包括AgSeTe、HgSeTe、CuSeTe、BiSeTe、PbSeTe、CdSeTe、SbSeTe、NiSeTe和CoSeTe）可以被合成。还可以制备与两种或更多种合金化金属硫族化物相集成的合金化和混合纳米线。所有这些金属硫族化物纳米线的成分都可以在很宽的范围内进行调节。该方案为可控合成新一代一维金属硫族化物纳米结构提供了一条新的通用途径。
