Transient Absorption Analysis on Energy Transfer from Carbon Quantum Dots to Tungsten Disulfide
Ruixiang Wu,
Xin Liu,
Fengjie Guo
et al.
Abstract:The combination of carbon quantum dots (CQDs) with transition
metal
disulfides results in 0D–2D composites with enhanced light
absorption properties. In the transient absorption spectrum of CQD–WS2 composites, photoinduced absorption feature of the intrinsic
state was inhibited by WS2. The suppressed photoinduced
absorption feature of the defect state appeared at a particular WS2 concentration (0.1–0.13 mg/mL), which indicates that
the capture ability of the defect state is enhanced by WS2. Transient absorptio… Show more
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