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Asked in Electronics Engineering
What are the characteristic of photo diode?
A photodiode is a type of photodetector capable of converting light into either current or voltage, depending upon the mode of operation. Its characteristics is same as that of an ordinary diode, except that it depends on light. ...
What is the differences between light emitting diode and a photodiode?
An LED emits light, when forward-biased. A photodiode reacts to light, producing a current. ...
Asked in Cell Biology (cytology)
What is the difference between photo diode and photovoltaic cell?
la principale difference est la dimension une photodiode est une minuscule cellule photovoltaique servant de capteur ... tellement petite que son utilisation comme photovoltaique est inutile une cellule photovoltaique peut etre utilisé en photodiode ...
What are the differences between an L.E.D. and a photodiode?
LED works on the principle of Electroluminence A Photo-Diode works on the principle of photoconduction ...
Asked in Electronics
Advantage and disadvantages of avalanche diode?
Avalanche photodiode advantages and disadvantages The avalanche photodiode has a number of different characteristics to the normal p-n or p-i-n photodiodes, making them more suitable for use in some applications. In view of this it is worth summarising their advantages and disadvantages.. The main advantages of the avalanche photodiode include: Greater level of sensitivity The disadvantages of the avalanche photodiode include: Much higher operating voltage may be required. Avalanche photodiode produces a much higher level of noise than a p-n photodiode Avalanche process means that the output...
Asked in Genetics
What is the Difference between photodiode and solar cell?
It all depends on the purpose of use. A photodiode has relatively small area and can generate only little power sufficient enough to drive a small voltage transistor or a LED. On the other hand, solar cells can be made quite big enough to generate watts of energy per square inch of area. Employed on large scale, it could become the new source of power in the tropical countries. ...
What is the difference between diode and photodiode?
diode a pn junction used either in FB or RB as per application eg rectifier, switch etc. photodiode a pn junction(usually with wider depletion width) usee d in RB mode only to detect light. Light incident on depletion width breaks the covalent bond and charge flow results in current that is proportional to the intensity(amount of photons incident) of light. prateekb ...
Asked in Science Experiments
What is the role of the laser in an AFM experiment?
The most common use of a laser in an Atomic Force Microscope (AFM) is to generate a coherent beam of light that is reflected from the back of the AFM probe and onto a photodetector. As the AFM cantilever moves up and down, or twists left and right, the reflected beam traverses the photodetector creating a change in the voltage output from the segments (quadrants) of the photodetector. This difference signal is normalized to the total voltage output (the “sum”) and that...