One-Pot Process in Scalable Bath for Water-Dispersed ZnS Nanocrystals with the Tailored Size

Journal Article · Mon May 01 00:00:00 EDT 2017 · Journal of Nanoscience and Nanotechnology

DOI:https://doi.org/10.1166/jnn.2017.13063· OSTI ID:1345771

Jung, Hyunsung ^[1]; Phelps, Tommy J. ^[1]; Rondinone, Adam J. ^[2]; Jellison, Gerald E. ^[3]; Duty, Chad E. ^[4]; Han, Kee Sung ^[5]; Moon, Ji-Won ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
4. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division

Well-dispersed ZnS nanocrystals with tailored size in aqueous solutions were synthesized by employing cysteine-sulfur (Cys-S) complexes with low molecular weight in a scalable anoxic vessel. High yield production of water-dispersed ZnS nanocrystals on a 10-L scale was demonstrated in an aqueous solution process. The average crystallite size of ZnS was controlled by changing the ratio of the cysteine to sulfide in the applied Cys-S complexes. A decrease in the crystallite size of ZnS likely resulted in both the blue shift of peak positions and the relative variation of peak intensities in the photoluminescence properties. In addition, the pH-dependent stability against aggregation of ZnS nanocrystals was investigated to reduce agglomeration.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1345771
• Journal Information: Journal of Nanoscience and Nanotechnology, Vol. 17, Issue 5; ISSN 1533-4880
• Publisher: American Scientific Publishers
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
Aggregation
Blue-Shift
Cysteine-Sulfur Complex
Nanocrystal
Surfactant
ZnS