Semiconductor materials are divided into elemental semiconductors, inorganic compound semiconductors, organic compound semiconductors and amorphous and liquid semiconductors.
Elemental semiconductors in the periodic table of the Ⅲ A to IVA group distribution of 11 kinds of semiconducting elements, C, P, Se with insulator and semiconductor two forms; B, Si, Ge, Te has a semiconducting; Sn, As, Sb has a semiconductor with the two forms of metal.
P's melting point and boiling point is too low, Ⅰ vapor pressure is too high, easy to decompose, so they are not very practical value. As, Sb, Sn's stable state is a metal, the semiconductor is an unstable form. B, C, Te is also due to the difficulties in the preparation process and the limitations of the performance and has not yet been utilized.
New materials:
They are structurally stable, have excellent electrical properties, and are inexpensive enough to be utilized in the manufacture of field-effect transistors, which are widely used in modern electronic devices.
Scientists say the latest research is expected to make artificial skin, smart bandages, flexible displays, smart windshields, wearable electronic devices and electronic wallpaper a reality.
The reason for the expensive mainly because televisions, computers and cell phones and other electronic products are made of silicon, manufacturing costs are very high; and carbon-based (plastic) organic electronics not only easy to manufacture, low-cost, but also lightweight and flexible can be bent, representing the "electronic devices everywhere" this future trend.