Referred to as a light emitting diode LED. Containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N) made of a compound such as a diode.
When the electron and hole recombination can radiate visible light, which can be used to make light-emitting diodes. As in the circuit and the instrument lights, or the composition of text or digital display. GaAs diode glows red, gallium phosphide diode glow green, yellow silicon carbide diode hair, blue hair GaN diode. Was divided due to the chemical nature of the organic light emitting diode OLED and an inorganic light emitting diode LED.
It is a semiconductor diode that can put energy into light energy. Like ordinary diode emitting diode is composed by a PN junction, also has a one-way conductivity. When coupled to the light-emitting diode forward voltage, injected into the holes from the P region and the N zone area by N electrons injected into the P region in the vicinity of the PN junction within a few microns, respectively, with the electronics and empty area of the P region N point complex, resulting in the spontaneous emission of fluorescence. Energy states of electrons and holes in which different semiconductor materials different. When an electron and hole recombination energy released much different, more energy released, the shorter the wavelength of light is emitted. Commonly used is made red, green or yellow light diode. Light emitting diode reverse breakdown voltage greater than 5 volts. Its forward voltage characteristic curve is very steep, you must use the current limiting resistor in series to control the current through the diode.
