puolijohtavien

Puolijohtavien is a Finnish term that translates to "semiconductors" in English. Semiconductors are materials that have electrical conductivity between that of a conductor and an insulator. This unique property makes them essential components in modern electronics.

The conductivity of a semiconductor can be manipulated by introducing impurities, a process called doping. Doping can increase the number of charge carriers (electrons or holes), thereby altering the material's resistance and enabling it to conduct electricity under specific conditions. Common semiconductor materials include silicon and germanium.

Semiconductors are the foundation of most electronic devices we use today. They are used to create transistors, diodes, integrated circuits (ICs), and other components that are vital for controlling electric current. These components are found in everything from smartphones and computers to televisions and medical equipment. The development and understanding of semiconductor physics have been crucial for the advancement of technology and continue to be an active area of research.