2D Cadmium Chalcogenide Nanoplatelets: Recent Progress and Opportunities

Emerging research on 2D cadmium chalcogenide nanoplatelets (NPLs) has garnered significant interest due to their large absorption cross-section, narrow emission band, fast photoluminescence decay, high optical gain, and significant giant oscillator strength transitions, which render them highly suitable for optoelectronic devices. This Perspective highlights their ultrafast decay dynamics and their applications in photodetectors, nonlinear properties, electrocatalysis, and photocatalysis. A deeper understanding of excited-state charge carrier dynamics is crucial for optoelectronic applications, particularly in photodetectors, nonlinear properties, and photocatalytic systems, where charge separation and transfer are essential. The in-depth knowledge of photophysical phenomena in semiconductor nanoplatelets is an increasingly valuable hand-picked topic within the broader materials research community.