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What semiconductor diode glows when voltage is applied?
Light Emitting Diode or LED
What semiconductor material is used to create white LED light?
A: gallium arsenide
How you can convert an electrical signal into an optical signal?
electrical signal can be converted to an optical sigal by using a LED or SOA(semiconductor optical amplifier). LED is the cheaper option but have the drawback of larger linewidth. Typically used for LAN (local area network). SOA produces an optical signal mostly by direct modulation tecnique .
Why is semiconductor used for current instead of normal conductor materials?
The kind of material used in a device depends on its requirements and functions. Semiconductors are used where we need moderate conductivity, conductors are used where we need very high conductivity. Junction diodes(a semiconductor device) allows electricity to pass in one direction and can be used as rectifier. Conductors can't do this. Transistors and LED are other applications of semiconductor. Note that generally devices are made of both conductors and semiconductors.
Why are LEDs different lengths?
To make it easier to see which is positive - anode, and which is negative - cathode. You need to know that, because the LED will only light if the positive and negative terminals of the battery are connected to the correct sides of the LED.
What class of material is LED?
Semiconductor or composite.
Why is silicon not used in fabrication of LED?
Silicon is an indirect band gap semiconductor
Is a black lamp the same as a LED lamp?
I don't think so, "LED" is the abbreviation of "light-emitting diode". It is a semiconductor light source which could illuminate when a current moves through it. The LED chip, which is a semiconductor chip, is the heart of an LED. Source form google and Lighting Ever's blog.
What is the most common LED made of?
Part answer. Today, the most common LED's are probably the ones in flat screen TV's.
What is and LED?
Light-emitting diode, a semiconductor diode that glows when a voltage is applied.
What semiconductor diode glows when voltage is applied?
Light Emitting Diode or LED
What semiconductor material is used to create white LED light?
A: gallium arsenide
What is led and how does it work?
A light emitting diode is a special type of diode made of transparent semiconductor (silicon & germanium are opaque) like aluminum indium gallium phosphide. The selected semiconductor must also have a large enough band gap that when electrons fall into holes photons are emitted.
What is the function of led connectors?
Light emitting diodes or LED is used to save on electricity. LED connectors are a semiconductor device designed to produce a certain wavelength and type of light.
what does led stand for led?
Light Emitting DiodeLight-emitting diode - a semiconductor that glows when a voltage is applied
Where can one find semiconductor devices?
Semiconductor devices are used in numerous electronic products such as radios and Tv's. They are used in LED lights to. One can buy such products from Best Buy and Amazon.
How you can convert an electrical signal into an optical signal?
electrical signal can be converted to an optical sigal by using a LED or SOA(semiconductor optical amplifier). LED is the cheaper option but have the drawback of larger linewidth. Typically used for LAN (local area network). SOA produces an optical signal mostly by direct modulation tecnique .
