Abstract
Recent studies in development of near-infrared luminophores focus on overcoming their disadvantages such as low quantum efficiency, limited emission power, and broad emission spectra. Rare earth (RE) elements are promising compounds in this respect as they offer a unique set of optical properties that provide narrow emission spectra and large Stokes shifts. This work reports the results of synthesis and characterization of new anisometric complexes of lanthanide(III) tris(b-diketonates) and 1,10-phenanthroline. These complexes possess light emitting-properties in the near-infrared range. Due to their structural features, these complexes allow production of homogeneous films by spin coating. These films are transparent in the visible and near-infrared ranges (transmission up to 99%). This paper demonstrates advantages of Yb(III), Er(III), and Nd(III) complexes as potential components of highly efficient light-transforming NIR coatings.
Highlights
A.S.; Galyametdinov, Y.G.Infrared radiation (IR) attracts the sustained attention of scientists due to growing opportunities for its practical applications [1,2,3,4,5,6]
Various IR light sources are represented by tungsten halogen lamps, Globars, and light-emitting diodes with luminophore conversion (PC light emitting diodes) [7]
Efficient sensitization of visible light luminescence is reported for Eu3+ and Tb3+ ions with relatively high first excited states (5 D0 for Eu3+ is 17,286 cm−1 and 5 D4 for Tb3+ is 20,545 cm−1 ) [29,30,40]
Summary
Infrared radiation (IR) attracts the sustained attention of scientists due to growing opportunities for its practical applications [1,2,3,4,5,6]. Most of these applications rely on the results of research in physics, chemistry, pharmacy, medicine, cosmetics, food sciences, and agriculture [1]. PC LEDs are popular near-infrared (NIR) light sources that are used as components of remote control devices, automobile sensors, traffic enforcement cameras, ocular scanners, spectrometers, optic fiber devices, and biological analysis instruments [8,9,10,11,12,13,14,15,16,17,18].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
