NDLI: Seed-catalyzed heteroepitaxial growth and nonlinear optical properties of zinc selenide nanowires

Content Provider	Royal Society of Chemistry (RSC)
Author	You, Tingting Yang, Congming Huang, Zhipeng Zhang, Chi Humphrey, Mark G. Jia, Ding Wang, Junli Chen, Kangmin Yang, Qing
Copyright Year	2012
Abstract	Seed-catalyzed, heteroepitaxial growth of high aspect-ratio, uniform ZnSe nanowires is reported, in which Ag2Se nanoparticles serve as heterogeneous seeds and as epitaxial substrates. Due to the difference in solubility product constants (Ksp: Ag2Se ≪ ZnSe), Ag2Se is precipitated before ZnSe and in situ seeds and catalyzes the nanowire growth in a one-pot solution synthesis. The lattice match between metastable tetragonal Ag2Se{212} and cubic ZnSe{220} planes facilitates the heteroepitaxial growth of ZnSe nanowires. Conversion of small, uniform Ag particles, which are produced from the reduction of Ag+ ions by reductants/surfactants such as polyvinyl pyrrolidone (PVP) and oleylamine (OA), into Ag2Se with small size and high uniformity is shown to be an effective strategy to control the diameter size and distribution of ZnSe nanowires. The third-order nonlinear optical behavior of the as-prepared nanowires has been evaluated by Z-scan measurements.
Starting Page	10009
Ending Page	10014
Page Count	6
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	22
Issue Number	19
Journal	Journal of Materials Chemistry
DOI	10.1039/c2jm00091a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Solubility equilibrium Catalysis Nanowire Crystal structure Metastability Tetragonal crystal system Oleylamine Nonlinear optics
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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