The discovery of graphene opened a new field in the physics of solid matter, focusing on two dimensional (2D) materials [1]. The newly obtained material turned out to have very unusual properties, the most interesting in its electronic aspect. Graphene shows linear dispersion around the Fermi levela Dirac cone [2]. This makes the electrons velocity in graphene independent of energy, i.e. they behave as if they have no mass. It also exhibits very high carrier mobility [3]. Graphene came into existence at a similar time with the development of another new branch of (theoretical) solid-state physics, investigating topological states of matter [4]. What made the material really "famous" was that it is predicted to be a promising candidate for a variety of exotic topological properties [5]. From there, it has quickly grown to become one of the major research directions in today's field of materials science. However promising, over 15 years of research on graphene has shown that some major obstacles on the way to utilizing its electronic properties are very hard to overcome. Even though theoretically possible, non-trivial topological effects are inaccessible for experimental physics, due to the extreme conditions in which those effects appear. The reason for this is the lack of a bandgap, which also hampers the application of graphene in semiconductor devices. The attempts of modifying graphene's electronic structure in order to open a significant bandgap with several techniques, like adsorbates, stress, external fields and even shape had only limited success. Hence, the attention of the community turned to other 2D materials, where this major problem would be easier to tackle. There are several directions including transition metal dichalcogenides and other