Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720 (USA).
Material Sciences Division; Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (USA).
Angew Chem Int Ed Engl. 2015 Jun 8;54(24):7007-11. doi: 10.1002/anie.201411461. Epub 2015 Apr 29.
Reported is the design and modular synthesis of a dual metal-dual semiconductor heterostructure with control over the dimensions and placement of its individual components. Analogous to molecular synthesis, colloidal synthesis is now evolving into a series of sequential synthetic procedures with separately optimized steps. We detail the challenges and parameters that must be considered when assembling such a multicomponent nanoparticle, and their solutions. This multicomponent nanosystem, Ru-CdSe@CdS-Pt, was designed to achieve charge carrier separation and directional transfer across different interfaces toward two separate redox catalysts. This heterostructure may potentially serve as a nanometric closed circuit photoelectrochemical cell.
本文报道了一种具有双重金属-双重半导体异质结构的设计和模块化合成，可控制其各个组件的尺寸和位置。类似于分子合成，胶体合成现在正在演变成一系列具有单独优化步骤的顺序合成过程。我们详细介绍了组装这种多组分纳米粒子时必须考虑的挑战和参数，以及它们的解决方案。这种多组分纳米系统 Ru-CdSe@CdS-Pt 的设计目的是实现不同界面之间的载流子分离和定向转移，以达到两个独立的氧化还原催化剂。这种异质结构有可能作为纳米级闭路光电化学电池。
