Facilitating J-Aggregate Formation by Lowering Activation Energy to Achieve Ultrahigh Brightness for NIR-II Fluorescence Imaging and Photoacoustic Imaging.
Organic fluorophores operating in the second near-infrared window (NIR-II, 900-1700 nm) are plagued by low quantum yields (QYs) and diminished brightness in aqueous media. To address this challenge, we proposed a strategy of regulating the activation energy for aggregates transformation to achieve high-brightness NIR-I...