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Nanostructured zinc...
Nanostructured zinc sulphide phosphors
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Vacassy, R. (författare)
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Scholz, S. M. (författare)
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Dutta, Joydeep (författare)
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visa fler...
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Hofmann, H. (författare)
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Plummer, C. J. G. (författare)
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Carrot, G. (författare)
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Hilborn, J. (författare)
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Akinc, M. (författare)
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visa färre...
- 1998
- 1998
- Engelska.
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Ingår i: Materials Research Society Symposium - Proceedings. ; , s. 369-374
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Agglomeration
- Complexation
- Composition effects
- Doping (additives)
- Nanostructured materials
- Particle size analysis
- Phosphors
- Photoluminescence
- Polycrystalline materials
- Precipitation (chemical)
- Synthesis (chemical)
- Ligands
- Zinc sulfide
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)