Fig. 1: Fabrication of LnNP-based NIR-II LEDs.
From: Triplets electrically turn on insulating lanthanide-doped nanoparticles
a, Schematic illustration of the device architecture of LnLEDs with a close-up schematic of LnNP@9-ACA nanohybrids. b, Simplified schematic showing electron and hole injection through organic molecules to turn on lanthanide ions in an insulating host lattice. CB, conduction band; VB, valence band. c, Normalized EL spectra of LnLEDs. a.u., arbitrary units. d, Reported FWHMs of the EL at different wavelengths from different types of LED, including LnLEDs and QD LEDs.
