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Size-dependent spectroscopic, optical, and electrical properties of PbSe nanoparticles

✍ Scribed by Y. Badr; M. A. Mahmoud

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
162 KB
Volume
41
Category
Article
ISSN
0232-1300

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✦ Synopsis

Stable crystalline Lead Selenide nanoparticles (PbSe NPs) were prepared with a cubic (sphalerite) phase in polyvinyl alcohol (PVA) matrix. Moreover, XRD was used to characterize the PbSe NPs in PVA. The size were controlled by Pb:Se ions ratio in which the particle size was found to be inversely proportional to this ratio up to 16:1. FT-Raman and FT-IR measurements indicated the decrease of crystallization of PVA due to doping with PbSe NPs as indicated by the appearance of a peak at 1124 cm -1 that increases by size reduction of PbSe NPs. The Photoluminescence and electrical measurements monitored the interaction of PbSe NPs with PVA which increased by decreasing the particle size.

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