Figure 3.

Charge density difference plots. Charge density difference plots for (a) O2, (b) H2O, (c) NH3, (d) NO, (e) NO2, and (f) CO interacting with monolayer MoS2. The red (green) distribution corresponds to charge accumulation (depletion). The isosurface is taken as 5 × 10-4e3. The direction and value of charge transfer are also denoted.

Yue et al. Nanoscale Research Letters 2013 8:425   doi:10.1186/1556-276X-8-425
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