2D self-bundled CdS nanorods with micrometer dimension in the absence of an external directing process
Resource
ACS Nano 2 (4): 750-756
Journal
ACS Nano
Journal Volume
2
Journal Issue
4
Pages
750-756
Date Issued
2008
Author(s)
Abstract
In the absence of an external direction-controlling process, exclusive self-bundled arrays of CdS nanorods are formed using a facile solution-based method involving trioctylphosphine (TOP) and tetradecylphosphonic acids (TDPA) as cosurfactants. CdS self-bundled arrays with an area of as large as 2.0 μm2 could be obtained. A detailed mechanistic investigation leads us to conclude that the matching in nanorod concentration, intrinsic properties of CdS, and the hydrocarbon chains of the surfactants between adjacent CdS rods play key roles in the self-assembly. In sharp contrast to the defect dominant emission in solutions, the self-bundled US nanorods exhibit optical emission nearly free from the defect-states, demonstrating their potential for applications in luminescence and photovoltaic devices. © 2008 American Chemical Society.
Subjects
CdS; Nanocrystal; Nanorod; Self-assembly; Semiconductor
SDGs
Other Subjects
Data storage equipment; Nanorods; Nanostructured materials; Nanostructures; Thickness measurement; (e ,3e) process; CdS nanorods; Co-surfactants; trioctyl phosphine; Cadmium compounds; cadmium derivative; cadmium selenide; microsphere; nanotube; selenium derivative; article; chemistry; conformation; crystallization; macromolecule; materials testing; methodology; nanotechnology; particle size; surface property; ultrastructure; Cadmium Compounds; Crystallization; Macromolecular Substances; Materials Testing; Microspheres; Molecular Conformation; Nanotechnology; Nanotubes; Particle Size; Selenium Compounds; Surface Properties
Type
journal article
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