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Synthesis and optical properties of two new PPV derivatives embedded on the surface of PbS nanocrystals

Paper ID Volume ID Publish Year Pages File Format Full-Text
27802 44043 2010 7 PDF Available
Title
Synthesis and optical properties of two new PPV derivatives embedded on the surface of PbS nanocrystals
Abstract

In this work we present the optical characteristics of three PPV derivatives, pure and conjugated with PbS nanocrystals (NCs). Our results exhibit strong dependence of the fluorescence lifetime of the polymers on the PbS concentration. It appears that the fluorescence lifetimes increase with the PbS NCs concentration. This is a surprising result because the presence of the quantum dots, which create new nonradiative pathways, should cause a shortening of the exciton lifetime. The observed phenomenon indicates that the surface of the PbS NCs strongly affects the excited polymer, leading to the stabilization of the emerging exciton.

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Synthesis and optical properties of two new PPV derivatives embedded on the surface of PbS nanocrystals
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 215, Issue 1, 5 September 2010, Pages 69–75
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us