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Nanostructured zinc sulphide phosphors
- Vacassy, R. (author)
- Scholz, S. M. (author)
- Dutta, Joydeep (author)
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- Hofmann, H. (author)
- Plummer, C. J. G. (author)
- Carrot, G. (author)
- Hilborn, J. (author)
- Akinc, M. (author)
- show less...
- 1998
- 1998
- English.
- In: Materials Research Society Symposium - Proceedings. ; , s. 369-374
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Zinc sulphide (ZnS) particles are efficient phosphors for application in flat-panel displays. Spherical ZnS particles were prepared by precipitation from a homogeneous solution. Nanoparticles of 20 to 40 nm having a very narrow size distribution could be synthesized by using complexing chelates such as acetate and acetylacetonate. Complexing of the precipitating cation with the anions present in the system lead to a limited concentration of free cations in the solution. This strongly influences the kinetics of the primary particle agglomeration/growth, resulting in nanometer-sized ZnS particles. Nanostructured ZnS synthesized in this way are polycrystalline particles composed of crystallites of 5-10 nm. The synthesis of very small, non-agglomerated, nanocrystalline particles in the 5-10 nm size range was also possible, making use of a strong complexing ligand (thioglycerol) during the synthesis. The synthesis of controlled monosized ZnS particles will be presented and discussed. The photoluminescence characteristics of ZnS make this material a suitable candidate as phosphor for application in low voltage display technology. The effect of Mn2+ doping on the luminescence characteristics of ZnS will also be discussed.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Keyword
- Agglomeration
- Complexation
- Composition effects
- Doping (additives)
- Nanostructured materials
- Particle size analysis
- Phosphors
- Photoluminescence
- Polycrystalline materials
- Precipitation (chemical)
- Synthesis (chemical)
- Ligands
- Zinc sulfide
Publication and Content Type
- ref (subject category)
- kon (subject category)
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- Vacassy, R.
- Scholz, S. M.
- Dutta, Joydeep
- Hofmann, H.
- Plummer, C. J. G ...
- Carrot, G.
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- Hilborn, J.
- Akinc, M.
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- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Nano technology
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- By the university
- Royal Institute of Technology
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