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Up-Conversion Fluorescent Labels for Plastic Recycling: A Review

Gao, Guojun; Turshatov, Andrey; Howard, Ian A.; Busko, Dmitry; Joseph, Reetu; Hudry, Damien; Richards, Bryce S.

Abstract (englisch):
The demand for more efficient and complete sorting techniques for plastic waste is growing, and one possible solution isbased on fluorescent labeling. Novel fluorescent labels based on trivalent lanthanide (Ln3+) activated inorganic up-conversion (UC) materials offer a promising technological solution for plastic recycling. UC is a nonlinear, anti-Stokes process of combining two or more low energy near-infrared (NIR) photons to obtain the emission of a single higher energy photon. While Ln3+ based UC materials possess one key disadvantage –low quantum yield, they also exhibit many unique features, such as high signal/noise ratio, tailored emission color, long photo-luminescent lifetime, and low toxicity. These unique features endear them for a diverse range of applications and offer many new opportunities. Herein, we review the recent advances in the Ln3+ activated inorganic micro-sized UC materials from the perspective of tailoring UC emission color and intensity for plastic recycling applications.


Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.1002/adsu.201600033
ISSN: 2366-7486
KITopen ID: 1000070138
HGF-Programm 43.23.04; LK 01
Erschienen in Advanced Sustainable Systems
Band 1
Heft 5
Seiten Art.Nr. 1600033
URLs http://onlinelibrary.wiley.com/doi/10.1002/adsu.201600033/full
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