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Title: Controlled synthesis of monodispersed AgGaS{sub 2} 3D nanoflowers and the shape evolution from nanoflowers to colloids

Abstract

Monodispersed AgGaS{sub 2} three-dimensional (3D) nanoflowers have been successfully synthesized in a 'soft-chemical' system with the mixture of 1-octyl alcohol and cyclohexane as reaction medium and oleylamine as surfactant. The crystal phase, morphology and chemical composition of the as-prepared products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution TEM (HTEM), respectively. Results reveal that the as-synthesized AgGaS{sub 2} nanoflowers are in tetragonal structure with 3D flower-like shape. Controlled experiments demonstrated that the shape transformation of AgGaS{sub 2} nanocrystals from 3D nanoflowers (50 nm) to nanoparticles (10-20 nm) could be readily realized by tuning the reaction parameters, e.g., the ratio of octanol to cyclohexane, the length of carbon chain of fatty alcohol, the concentration of oleylamine, etc. The UV-vis and PL spectra of the obtained AgGaS{sub 2} nanoflowers and colloids were researched. In addition, the photoelectron energy conversion (SPV) of AgGaS{sub 2} nanoflowers was further researched by the surface photovoltage spectra. -- Graphical abstract: Various AgGaS{sub 2} nanocrystals with different morphologies and sizes including 3D nanoflowers (a) and colloids (b) were synthesized in mixed solvent reaction system and their PL spectra was researched (c). Display Omitted highlights: > Ternary chalcogenide AgGaS{sub 2} nanocrystals were synthesized in amore » simple mixed solvent system. > The shape and size transformation of AgGaS{sub 2} from 3D nanoflowers to colloids could be tuned effectively. > AgGaS{sub 2} nanoflowers was obtained with relatively insufficient ligands protection in reaction system, otherwise, AgGaS{sub 2} colloids was obtained. > Provide a new choice to prepare ternary nanomaterials and further understand the reaction mechanisms along with the growth kinetics of ternary nanocrystals.« less

Authors:
;  [1];  [2];  [1]
  1. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240 (China)
  2. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240 (China)
Publication Date:
OSTI Identifier:
21504069
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 184; Journal Issue: 5; Other Information: DOI: 10.1016/j.jssc.2011.03.022; PII: S0022-4596(11)00119-8; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CARBON; CHEMICAL COMPOSITION; COLLOIDS; CRYSTALS; CYCLOHEXANE; GALLIUM SULFIDES; LIGANDS; MIXED SOLVENTS; MORPHOLOGY; NANOSTRUCTURES; OCTANOLS; REACTION KINETICS; SILVER COMPOUNDS; SPECTRA; SURFACES; SURFACTANTS; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; ALCOHOLS; ALKANES; CHALCOGENIDES; COHERENT SCATTERING; CYCLOALKANES; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; ELEMENTS; GALLIUM COMPOUNDS; HYDROCARBONS; HYDROXY COMPOUNDS; KINETICS; MICROSCOPY; MIXTURES; NONMETALS; ORGANIC COMPOUNDS; SCATTERING; SOLVENTS; SULFIDES; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Yuan, Yanping, Zai, Jiantao, Su, Yuezeng, and Qian, Xuefeng. Controlled synthesis of monodispersed AgGaS{sub 2} 3D nanoflowers and the shape evolution from nanoflowers to colloids. United States: N. p., 2011. Web. doi:10.1016/j.jssc.2011.03.022.
Yuan, Yanping, Zai, Jiantao, Su, Yuezeng, & Qian, Xuefeng. Controlled synthesis of monodispersed AgGaS{sub 2} 3D nanoflowers and the shape evolution from nanoflowers to colloids. United States. https://doi.org/10.1016/j.jssc.2011.03.022
Yuan, Yanping, Zai, Jiantao, Su, Yuezeng, and Qian, Xuefeng. 2011. "Controlled synthesis of monodispersed AgGaS{sub 2} 3D nanoflowers and the shape evolution from nanoflowers to colloids". United States. https://doi.org/10.1016/j.jssc.2011.03.022.
@article{osti_21504069,
title = {Controlled synthesis of monodispersed AgGaS{sub 2} 3D nanoflowers and the shape evolution from nanoflowers to colloids},
author = {Yuan, Yanping and Zai, Jiantao and Su, Yuezeng and Qian, Xuefeng},
abstractNote = {Monodispersed AgGaS{sub 2} three-dimensional (3D) nanoflowers have been successfully synthesized in a 'soft-chemical' system with the mixture of 1-octyl alcohol and cyclohexane as reaction medium and oleylamine as surfactant. The crystal phase, morphology and chemical composition of the as-prepared products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution TEM (HTEM), respectively. Results reveal that the as-synthesized AgGaS{sub 2} nanoflowers are in tetragonal structure with 3D flower-like shape. Controlled experiments demonstrated that the shape transformation of AgGaS{sub 2} nanocrystals from 3D nanoflowers (50 nm) to nanoparticles (10-20 nm) could be readily realized by tuning the reaction parameters, e.g., the ratio of octanol to cyclohexane, the length of carbon chain of fatty alcohol, the concentration of oleylamine, etc. The UV-vis and PL spectra of the obtained AgGaS{sub 2} nanoflowers and colloids were researched. In addition, the photoelectron energy conversion (SPV) of AgGaS{sub 2} nanoflowers was further researched by the surface photovoltage spectra. -- Graphical abstract: Various AgGaS{sub 2} nanocrystals with different morphologies and sizes including 3D nanoflowers (a) and colloids (b) were synthesized in mixed solvent reaction system and their PL spectra was researched (c). Display Omitted highlights: > Ternary chalcogenide AgGaS{sub 2} nanocrystals were synthesized in a simple mixed solvent system. > The shape and size transformation of AgGaS{sub 2} from 3D nanoflowers to colloids could be tuned effectively. > AgGaS{sub 2} nanoflowers was obtained with relatively insufficient ligands protection in reaction system, otherwise, AgGaS{sub 2} colloids was obtained. > Provide a new choice to prepare ternary nanomaterials and further understand the reaction mechanisms along with the growth kinetics of ternary nanocrystals.},
doi = {10.1016/j.jssc.2011.03.022},
url = {https://www.osti.gov/biblio/21504069}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 5,
volume = 184,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2011},
month = {Sun May 15 00:00:00 EDT 2011}
}