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Bright Photon Upconversion on Composite Organic Lanthanide Molecules through Localized Thermal Radiation

Abstract: Converting low-energy photons via thermal radiation can be a potential approach for utilizing infrared (IR) photons to improve photovoltaic efficiency. Lanthanide-containing materials have achieved great progress in IR-to-visible photon upconversion (UC). Herein, we first report bright photon, tunable wavelength UC through localized thermal radiation at the molecular scale with low excitation power density (<10 W/cm2) realized on lanthanide complexes of perfluorinated organic ligands. This is enabled by engineering the pathways of nonradiative de-excitation and energy transfer in a composite of ytterbium and terbium perfluoroimidodiphosphinates. The IR-excited thermal UC and wavelength control is realized through the terbium activators sensitized by the ytterbium sensitizers having high luminescence efficiency. The metallic molecular composite thus can be a potential energy material in the use of the IR solar spectrum for thermal photovoltaic applications.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: J. Phys. Chem. Lett. 2017, 8, 23, 5695-5699

Editorial: American Chemical Society

 Fecha de publicación: 03/11/2017

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1021/acs.jpclett.7b02513

ISSN: 1948-7185

Proyecto español: MAT2016-80438-P

Url de la publicación: https://doi.org/10.1021/acs.jpclett.7b02513

Autores/as

YE, HUANQING

BOGDANOV, VIKTOR

LIU, SHENG

VAJANDAR, SAUMITRA

OSIPOWICZ, THOMAS

XIONG, QIHUA