Journal
NANO LETTERS
Volume 15, Issue 6, Pages 4200-4205Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01464
Keywords
Nano; two-dimensional; heterostructure; density functional theory; site-selective
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Funding
- NSFC [21431003, 91127040, 21221062]
- State Key Project of Fundamental Research for Nanoscience and Nanotechnology [2011CB932402]
- National Basic Research Program of China [2014CB932101]
- Iowa State University
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Two-dimensional (2D) nanoheterostructure (2D NHS) With nanoparticles grown oh 2D nanomaterial substrates could potentially enable many novel functionalities. Controlled site selective :growth Of nanoparticles on either the lateral or the basal directions of 2D nanomaterial substrates is desirable but extremely challenging. Herein, we demonstrate the rational control, of lateral- and basal-selective attachment of CdS nanoparticles onto 2D Bi2Se3 nanosheets through solution phase reactions. The combination of experimental and theoretical efforts elucidate that site-relevant interfacial bonding and kinetic control of molecular precursors play vital roles for Site selectivity. Furthermore, the electronic structures revealed froth density functional theory calculations explain the superior performance of the lateral 2D NHSs compared, to their basal counterpart in prototype photoelectrochemical cells. The present study will inspire the construction of other site-selective 2D NHSs with well-defined structure and unique properties.
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