One-pot green synthesis of highly fluorescent glutathione-stabilized copper nanoclusters for Fe3+ sensing

Herein, we reported a simple one-pot green method for preparation of fluorescent copper nanoclusters (Cu NCs) with a high quantum yield up to 8.6%, using glutathione as the stabilizing agent. The as-prepared Cu NCs had good water solubility, excellent stability and ultrafine size through the characterization of UV–vis absorption spectroscopy, fluorescence spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy...