Photoluminescence of CdS semiconductor nanocrystals in sodium borosilicate glasses

The temperature- and excitation intensity-dependent photoluminescence (PL) spectra of CdS semiconductor nanocrystals in sodium borosilicate glasses prepared by a sol-gel method are studied and the carrier recombination mechanisms are discussed. Results show that the recombination luminescence of ele...

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Veröffentlicht in:	Journal of materials science letters 1996-01, Vol.15 (8), p.702-705
Hauptverfasser:	ZHAO, J, DOU, K, LU, S, CHEN, Y, HUANG, S, YU, J, XIANG, W, DING, Z
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous semiconductors glasses Amorphous semiconductors glasses nanocrystalline materials Borosilicate glass Composition Condensed matter: electronic structure, electrical, magnetic, and optical properties Densification Electrons Emission spectroscopy Exact sciences and technology Excitons Gels Ii-vi semiconductors Nanostructured materials Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Photoluminescence Physics Thermal effects
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Beschreibung
Zusammenfassung:	The temperature- and excitation intensity-dependent photoluminescence (PL) spectra of CdS semiconductor nanocrystals in sodium borosilicate glasses prepared by a sol-gel method are studied and the carrier recombination mechanisms are discussed. Results show that the recombination luminescence of electrons and holes (excitons) dominates in the radiative recombination processes of the CdS nanocrystals in the range of excitation intensity 10 super(4)-10 super(6) cm super(-2).
ISSN:	0261-8028 1573-4811
DOI:	10.1007/BF00264120