Fig. 3From: Facile Bottom-up Preparation of WS2-Based Water-Soluble Quantum Dots as Luminescent Probes for Hydrogen Peroxide and Glucosea Survey scan spectra of WS2 QDs and CD/WS2 QD composite. High-resolution XPS spectra showing the binding energies of b W 4f, c S 2p, d C 1s electrons recorded on CD/WS2 QD nanocomposite. Core level spectra of e W 3d and f S 2p recorded on WS2 QDs. (color online)Back to article page