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Title: In situ capping for size control of monochalcogenides (ZnS, CdS, and SnS) nanocrystals produced by anaerobic metal-reducing bacteria

Journal Article · · Nanotechnology

Metal monochalcogenide quantum dot nanocrystals of ZnS, CdS and SnS were prepared by anaerobic, metal-reducing bacteria using in situ capping by oleic acid or oleylamine. Furthermore, the capping agent preferentially adsorbs on the surface of the nanocrystal, suppressing the growth process in the early stages, thus leading to production of nanocrystals with a diameter of less than 5 nm.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1201289
Journal Information:
Nanotechnology, Journal Name: Nanotechnology Journal Issue: 32 Vol. 26; ISSN 0957-4484
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (20)

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Re-examination of characteristic FTIR spectrum of secondary layer in bilayer oleic acid-coated Fe3O4 nanoparticles journal March 2010
Facile synthesis of water-soluble ZnS quantum dots with strong luminescent emission and biocompatibility journal October 2013
Lattice and optical property evolution of ultra-small ZnS quantum dots grown from a single-source precursor journal April 2014
Inorganic materials using ‘unusual’ microorganisms journal November 2012
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ZnS Nanoparticle-Assisted Synthesis and Optical Properties of ZnS Nanotowers journal August 2007
The Architecture of Colloidal Quantum Dot Solar Cells: Materials to Devices journal September 2013
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Magic sized ZnS quantum dots as a highly sensitive and selective fluorescence sensor probe for Ag + ions journal January 2012
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Size tunable elemental copper nanoparticles: extracellular synthesis by thermoanaerobic bacteria and capping molecules journal January 2015
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Origin of the green photoluminescence from zinc sulfide nanobelts journal October 2004
Extracellular Proteins Limit the Dispersal of Biogenic Nanoparticles journal June 2007
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Cited By (3)

Biosynthesis of CdS Quantum Dots Mediated by Volatile Sulfur Compounds Released by Antarctic Pseudomonas fragi journal August 2019
Improved ZnS nanoparticle properties through sequential NanoFermentation journal August 2018
Biosynthesis of CdS Quantum Dots Mediated by Volatile Sulfur Compounds Released by Antarctic Pseudomonas fragi journal August 2019

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