Electron-hole pair

An electron-hole pair consists of a defect electron and an electron that has been transferred from its ground state in the crystal to an excited state through the absorption of energy .

The electron-hole pair can be both bound ( exciton ) and unbound (“free” charge carriers ). The energy required to form an exciton is somewhat smaller than that for an unbound electron-hole pair.

See also

• semiconductor
• Ribbon model
• Recombination (physics)

Individual evidence

1. ^ Wolfgang Brütting: Physics of Organic Semiconductors . 1st edition. Wiley-VCH, Berlin, ISBN 978-3-527-40550-3 , pp. 185 .
2. ↑ Charles Kittel: Introduction to Solid State Physics . 14th edition. Oldenbourg Verlag, Berlin, ISBN 978-3-486-59755-4 , pp. 475 .