Journal article
Preparation of ultrafine chalcopyrite nanoparticles via the photochemical decomposition of molecular single-source precursors
Nano letters, Vol.6(6), pp.1218-1223
06/2006
Handle:
https://hdl.handle.net/2376/115131
PMID: 16771583
Abstract
The synthesis and characterization of ultrafine CuInS2 nanoparticles are described. Ultraviolet irradiation was used to decompose a molecular single source precursor, yielding organic soluble approximately 2 nm sized nanoparticles with a narrow size distribution. UV-vis absorption, 1H and 31P{1H} NMR, and fluorescence spectroscopies and mass spectrometry were used to characterize decomposition of the precursors and nanoparticle formation. The nanoparticles were characterized by high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy energy dispersive X-ray spectroscopy, powder X-ray diffraction (XRD), electron diffraction, inductively coupled plasma analysis, UV-vis absorption spectroscopy, and fluorescence spectroscopy. They have a wurzite-type crystal structure with a copper-rich composition. The hypsochromic shift in their emission band due to quantum confinement effects is consistent with the size of the nanocrystals indicated in the HRTEM and XRD analyses.
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Details
- Title
- Preparation of ultrafine chalcopyrite nanoparticles via the photochemical decomposition of molecular single-source precursors
- Creators
- Justin J Nairn - Department of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, USAPamela J ShapiroBrendan TwamleyTyler PoundsRay von WandruszkaT Rick FletcherMark WilliamsChongmin WangM Grant Norton
- Publication Details
- Nano letters, Vol.6(6), pp.1218-1223
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- United States
- Identifiers
- 99900547610801842
- Language
- English
- Resource Type
- Journal article