Abstract
Hydrogels are fabricated from CdSe/CdS seeded nanorod building blocks by the addition of hydrogen peroxide and converted to aerogels by supercritical drying. The aerogels show higher photoluminescence quantum yields and longer lifetimes than the hydrogels and the nanoparticle solutions. A model for this observation is derived.
Keywords:
(absolute) quantum yields; CdSe/CdS seeded nanorods; aerogels; radiative decays; semiconductor nanoparticles.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
MeSH terms
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Cadmium Compounds* / chemical synthesis
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Cadmium Compounds* / chemistry
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Fluorescence*
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Hydrogels* / chemical synthesis
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Hydrogels* / chemistry
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Light
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Microscopy, Electron, Scanning
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Microscopy, Electron, Transmission
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Nanotubes / chemistry
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Nanotubes / radiation effects*
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Selenium Compounds / chemical synthesis
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Selenium Compounds / chemistry
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Selenium Compounds / radiation effects*
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Solutions
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Spectrum Analysis
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Water / chemistry
Substances
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Cadmium Compounds
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Hydrogels
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Selenium Compounds
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Solutions
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Water