Ultraviolet and Near?Infrared Dual?Band Selective?Harvesting Transparent Luminescent Solar Concentrators

Visibly transparent luminescent solar concentrators (TLSC) can optimize both power production and visible transparency by selectively harvesting the invisible portion of spectrum. Since primary applications TLSCs include building envelopes, greenhouses, automobiles, signage, mobile electronics, maintaining aesthetics functionalities is as important achieving high conversion efficiencies (PCEs) in practical deployment. In this work, massive-downshifting phosphorescent nanoclusters fluorescent organic molecules are combined into a TLSC system ultraviolet (UV) near-infrared (NIR) selective-harvesting luminophores, respectively, demonstrating UV NIR dual-band with PCE over 3%, average transmittance (AVT) exceeding 75% color metrics suitable for window industry. With distinct wavelength-selectivity effective utilization spectrum, work reports highest light efficiency (PCE × AVT) 2.6 system, any photovoltaic (TPV) devices AVT greater than 70%, outperforms limit non-wavelength-selective TPV.