Structurally Well‐Defined Au@Cu₂₋<i>_x</i>S Core–Shell Nanocrystals for Improved Cancer Treatment Based on Enhanced Photothermal Efficiency

Abstract

Au@Cu2- x S core-shell nanocrystals (NCs) have been synthesized under large lattice mismatch with high crystallinity, controllable shape, and nonstoichiometric composition. Both experimental observations and simulations are used to verify the flexible dual-mode plasmon coupling. The enhanced photothermal effect is harnessed for diverse HeLa cancer cell ablation applications in the NIR-I window (750-900 nm) and the NIR-II window (1000-1400 nm).