This work presents a significant advancement in the development of
highly efficient NIR-emissive materials. By strategically doping gold
nanoclusters with copper, the researchers achieved a near-unity PLQY in
the NIR region at room temperature. The comprehensive analysis of structures, photophysical properties, and excited-state dynamics pro
vides valuable insights into the mechanisms driving this enhanced
luminescence. The findings highlight the potential of these nanoclusters
for applications in biological imaging and optical communication.
However, challenges such as ensuring long-term stability, scalable syn
thesis, and seamless integration into existing technologies must be
addressed, while future exploration of other dopants and synthetic stra
tegies could further enhance their optical properties, paving the way for
exciting advancements in nanomaterials.