Red?emitting tetraphenylethylene derivative with aggregation?induced enhanced emission for luminescent solar concentrators: A combined experimental and density functional theory study

This study examines the use of an aggregation-induced enhanced emission fluorophore (TPE-MRh) to prepare red-emitting luminescent solar concentrators (LSCs) based on poly(methyl methacrylate) (PMMA) and poly(cyclohexyl (PCMA). TPE-MRh is a tetraphenylethylene (TPE) derivative bearing two dimethylamino push groups 3-methyl-rhodanine pull moiety, with absorption maxima at around 500 nm fluorescence peak 700 that strongly increases in solid-state. displays typical crystallization-induced has been rationalized by modeling compound behavior solution solid-state via density functional theory calculations inclusion environment. dispersed into 5 × cm2 polymer films thickness 25 ± ?m revealed partial quenching content. Quantum yields (QYs) below 10% for 2 wt.% doping have addressed formation less emissive micro-sized clusters fluorophores. PMMA slabs same surface size but 3 mm 200 ppm provided QY 36.5% thanks attenuation detrimental effects aggregation. feature reflected LSCs performance, devices achieving largest power collected photovoltaic cell.