Physics of light production and emission
Time:2003-10-19 22:26:06 Click:Load...
Physics of light production and emission
In a light emitting diode, the recombination of electrons and electron holes in a semiconductor produces light (or infrared radiation), a process called "electroluminescence". The wavelength of the light depends on the energy band gap of the semiconductors used. Since these materials have a high index of refraction, design features of the devices such as special optical coatings and die shape are required to efficiently emit light.
