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CdSe nanocrystals in novel phosphate glass matrix

✍ Scribed by S. Wageh; A.S. Eid; S. El-Rabaie; A.A. Higazy

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
333 KB
Volume
40
Category
Article
ISSN
1386-9477

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✦ Synopsis

The CdSe nanoparticles have been prepared in the novel glass matrix P 2 O 5 -Na 2 O-ZnO-Li 2 O. The prepared nanoparticles and glass matrix are characterized by differential thermal analysis, X-rays diffraction, UV-vis optical absorption, and infrared spectroscopy. X-rays diffraction and optical absorption show that both of the annealing temperature and time play an important role in nanoparticles' growth. The well-annealed and high-temperature-annealed samples suggest Zn atoms to substitute Cd atoms to form an additional ZnSe-CdSe system. Infrared spectroscopy confirms the decrease of the Zn-content in the host glass due to growing of nanoparticles, causing long phosphate chains within.

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