Only in few semiconductor materials it is possible to make good transistors with both polarities, silicon, germanium and the silicon-germanium alloy being the main examples.
In most semiconductor materials it is possible to make good transistors only with a single polarity, either N or P, depending on the material.
So CMOS logic cannot be implemented in most semiconductor materials. This is the main reason why silicon has remained the principal material for complex logic circuits, even if there are a lot of materials with much better properties, except for allowing both polarities for transistors.
In the first decades of the semiconductor industry, the main advantage of silicon had been that it was possible to create a high-quality insulator layer on its surface by oxidation. However there are many years since this advantage is no longer relevant for high-density logic circuits, because all their MOS transistors use now insulators with high dielectric constant, e.g. based on hafnia, which are deposited on the surface of silicon in the same way they would be deposited on any other semiconductor.
In most semiconductor materials it is possible to make good transistors only with a single polarity, either N or P, depending on the material.
So CMOS logic cannot be implemented in most semiconductor materials. This is the main reason why silicon has remained the principal material for complex logic circuits, even if there are a lot of materials with much better properties, except for allowing both polarities for transistors.
In the first decades of the semiconductor industry, the main advantage of silicon had been that it was possible to create a high-quality insulator layer on its surface by oxidation. However there are many years since this advantage is no longer relevant for high-density logic circuits, because all their MOS transistors use now insulators with high dielectric constant, e.g. based on hafnia, which are deposited on the surface of silicon in the same way they would be deposited on any other semiconductor.