Hybrid fluorescent layer emitting polarized light

Semiconductor nanorods have anisotropic absorption and emission properties. In this work a hybrid luminescent layer is produced based on a mixture of CdSe/CdS nanorods dispersed in a liquid crystal that is aligned by an electric field and polymerized by UV illumination. The film emits light with pol...

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Bibliographic Details
Published inAPL materials Vol. 5; no. 7; pp. 076104 - 076104-6
Main Authors Mohammadimasoudi, Mohammad, Beeckman, Jeroen, Hens, Zeger, Neyts, Kristiaan
Format Journal Article
LanguageEnglish
Published AIP Publishing LLC 01.07.2017
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Summary:Semiconductor nanorods have anisotropic absorption and emission properties. In this work a hybrid luminescent layer is produced based on a mixture of CdSe/CdS nanorods dispersed in a liquid crystal that is aligned by an electric field and polymerized by UV illumination. The film emits light with polarization ratio 0.6 (polarization contrast 4:1). Clusters of nanorods in liquid crystal can be avoided by applying an AC electric field with sufficient amplitude. This method can be made compatible with large-scale processing on flexible transparent substrates. Thin polarized light emitters can be used in LCD backlights or solar concentrators to increase the efficiency.
ISSN:2166-532X
2166-532X
DOI:10.1063/1.4991029