Optical proprieties of ZnS : Cu/ZnS
(Sprache: Englisch)
3-Mercaptopropionic acid capped core/shell ZnS:Cu(3%)/ZnS doped quantum dots (QDs) where synthesized at 95 °C in basic aqueous solution using the nucleation doping approach methods. The structural and optical properties of the QDs were characterized by...
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3-Mercaptopropionic acid capped core/shell ZnS:Cu(3%)/ZnS doped quantum dots (QDs) where synthesized at 95 °C in basic aqueous solution using the nucleation doping approach methods. The structural and optical properties of the QDs were characterized by X-ray diffraction (XRD) which confirms the cubic phase blende, whereas transmission electron microscopy (TEM) which shows the nanoparticles are spherical. UV-vis spectroscopy and photoluminescence (PL) spectroscopy. The obtained nearly monodisperse QDs have an average diameter of ca. 3.31 nm and a zinc blende crystal structure. The PL emission wavelength was limited between 500 and 510 nm but PL quantum efficiency of ZnS:Cu/ZnS core/shell nanocrystals increased up to 5 %. The experimental results demonstrate that this method is effective for the preparation of ZnS:Cu/ZnS quantum dots.
Autoren-Porträt von Houcine Labiadh
Labiadh, HoucineI'm a Doctor qualified from Carthage University (Tunisia).
Bibliographische Angaben
- Autor: Houcine Labiadh
- 52 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 6202800968
- ISBN-13: 9786202800969
Sprache:
Englisch
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