rtp gas789

A set of red-light-excited, metal-free room-temperature phosphorescence (RTP) systems was constructed with brominated phenolsulfonephthaleine derivatives. mamajitu rtp The best metal-free RTP system has the reddest near-infrared (NIR) RTP emission (λ p = 819 nm) with the highest phosphorescence quantum yield (Φ RTP = 3 0%) so far identified