Bright photon upconversion on composite organic lanthanide molecules through localized thermal radiation
- Ye, Huanqing
- Bogdanov, Viktor
- Liu, Sheng
- Vajandar, Saumitra
- Osipowicz, Thomas
- Hernández, Ignacio
- Xiong, Qihua
DOIAbstract
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 sens...
Add to ORKG