FIGURE 15.

(A) Graphene photodetector with different metal contacts (Mueller et al., 2010), (B) Schematic of graphene stacked device (Chen et al., 2015), (C) Graphene stacked based photon energy dependence on IQE, (D) Monolayered MoSe₂ photodetector (Wang et al., 2018), (E) With its time resolved current (Wang et al., 2018), (F) Multilayered RSe₂ photodetector (Liu et al., 2016b), and (G) With its responsivity (Liu et al., 2016b); Reproduced with permission from (Mueller et al., 2010; Liu et al., 2016b; Chen et al., 2015; Wang et al., 2018).