Crystalline semiconductors in the form of thin films are crucial materials for many modern, advanced technologies in fields such as microelectronics, optoelectronics, display technology, and photovoltaic technology. Crystalline semiconductors can be produced at surprisingly low temperatures (as low as 120 C) by crystallization of amorphous semiconductors, which are put in contact with a metal. This so-called metal-induced crystallization process has attracted great scientific and technological interest because it allows the production of crystalline semiconductor-based advanced devices at...