Preparation of liquid silicon-based carbon dots and application for luminescent solar concentrators.

Liquid silicon-based carbon dots (CDs) with a photoluminescence quantum yield (PLQY) of 50% were prepared using N-[3-(trimethoxysilyl)propyl]ethylenediamine (DAMO), citric acid, and n-butylamine as raw materials. Firstly, the optimized characters have been determined, namely, the optimal DAMO, citric acid, and n-butylamine addition amounts of 1 mL, 0.9 g, and 1 mL, a reaction time of 3 h, and a reaction temperature of 160°C.