Which elements are examples of elemental semiconductors?

Elemental semiconductors are materials composed of a single species of atoms. According to the periodic table, the primary examples of these materials include:12

• Column IV elements: Silicon (Si), germanium (Ge), and gray tin (Sn).12
• Column VI elements: Selenium (Se) and tellurium (Te).12

Among these, silicon is the most widely used material in the electronics industry, accounting for more than 95 percent of all semiconductor products sold worldwide due to its superior stability and the ease of forming high-quality silicon dioxide insulators. While germanium was the dominant material in the early 1950s, it has largely been supplanted by silicon for most device fabrication.12