Efficient Z-scheme charge separation in novel vertically aligned ZnO/CdSSe nanotrees

Content Provider	Scilit
Author	Li, Zhengxin Nieto-Pescador, Jesus Carson, Alexander J. Blake, Jolie C. Gundlach, Lars
Copyright Year	2016
Description	Journal: Nanotechnology A new tree-like ZnO/CdSSe nanocomposite with CdSSe branches grown on ZnO nanowires prepared via a two-step chemical vapor deposition is presented. The nanotrees (NTs) are vertically aligned on a substrate. The CdSSe branches result in strong visible light absorption and form a type-II heterojunction with the ZnO stem that facilitates efficient electron transfer. A combination of photoluminescence spectroscopy and lifetime measurements indicates that the NTs are promising materials for applications that benefit from a Z-scheme charge transfer mechanism. Vertically aligned branched ZnO nanowires can provide direct electron transport pathways to substrates and allow for efficient charge separation. These advantages of nanoscale hierarchical heterostructures make ZnO/CdSSe NTs a promising semiconductor material for solar cells, and other opto-electronic devices.
Related Links	http://iopscience.iop.org/article/10.1088/0957-4484/27/13/135401/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/0957-4484/27/13/135401
Journal	Nanotechnology
Issue Number	13
Volume Number	27
Language	English
Publisher	IOP Publishing
Publisher Date	2016-02-19
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Vertically Aligned Charge Separation Photoluminescence
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering