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Fig. 6 | Nanoscale Research Letters

Fig. 6

From: Facile Bottom-up Preparation of WS2-Based Water-Soluble Quantum Dots as Luminescent Probes for Hydrogen Peroxide and Glucose

Fig. 6

a Excitation and emission PL spectra of CD/WS2 quantum dots. b PL intensity fluctuation of CD/WS2 QDs under continuous exposure to 360 nm UV light for 1 h. c The ionic stability of PL intensity for CD/WS2 QDs (blue circle) and pristine WS2 QDs (purple square) with varied NaCl concentrations in the range of 50–200 mM. d The temporal stability of PL intensity for pristine WS2 QDs for 1 h. (color online)

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