Figure 18.

Mixed-dimensional 0D/2D heterostructures. (a) Schematic illustration of ${\text{SnS}}_2$-QDs and monolayer ${\text{MoS}}_2$ band structure after the formation of heterojunction with proposed e—h pair separation. Reproduced with permission from ref 353. Copyright 2022 American Chemical Society. (b) Representative high magnifications STEM-ADF images of hBN-AgPt where the atomically dispersed Pt atoms in the Ag-Pt cluster are highlighted with red dashed circles. Reproduced with permission under a Creative Commons Attribution 4.0 International license (CC BY 4.0) from ref 34. Copyright 2021 Elsevier. (c) An annular dark-field TEM image of a ~0.6 at. % Au-doped ${\text{MoS}}_2$ monolayer. Au adatom (indicated by arrows) were found to be located on top of the Mo (i), S (ii), and hollow-center site (iii), respectively. (d) LDOS of the Au dopant atoms at their considered atomic structures. The blue and red plots are for the spin up and spin down components, respectively. The filled curves indicate occupied states. Panels (c) and (d) were adapted and modified with permission from ref 356. Copyright 2014 John Wiley & Sons, Inc.