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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.



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