CdSe nanocrystals in novel phosphate glass matrix |
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Affiliation: | 1. Vavilov State Optical Institute, 192171 Saint Petersburg, Russian Federation;2. ITMO University, 199034 Saint Petersburg, Russian Federation;3. Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622, Villeurbanne, France |
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Abstract: | The CdSe nanoparticles have been prepared in the novel glass matrix P2O5–Na2O–ZnO–Li2O. 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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