The photocurrent may be enhanced by internal gain caused by interaction among ions and photons under the influence of applied fields, such as occurs in an avalanche photodiode ( APD ).
32.
Whenever an electron is excited and extracted as photocurrent, an extra electron is injected from the opposite ( emitter ) contact to balance the loss of electrons from the quantum well.
33.
It is plotted together with the maximum conversion efficiency for every junction as a function of the wavelength, which is directly related to the number of photons available for conversion into photocurrent.
34.
This is accomplished by using a laser to induce a photocurrent in the silicon while simultaneously monitoring the magnitude of the photocurrent by connecting an ammeter to the device's power and ground.
35.
This is accomplished by using a laser to induce a photocurrent in the silicon while simultaneously monitoring the magnitude of the photocurrent by connecting an ammeter to the device's power and ground.
36.
Bipolar transistors can be made to conduct by exposure to light, because absorption of photons in the base region generates a photocurrent that acts as a base current; the collector current is approximately ? times the photocurrent.
37.
Bipolar transistors can be made to conduct by exposure to light, because absorption of photons in the base region generates a photocurrent that acts as a base current; the collector current is approximately ? times the photocurrent.
38.
The spectral distribution of the noise term in the photocurrent can be measured by means of an electrical spectrum analyzer over a radio frequency ( RF ) range that is limited by the electrical bandwidth of the detector used.
39.
Under open-circuit conditions ( that is, as " I " = 0 ), the open-circuit voltage is the voltage at which forward bias of the junction is enough that the forward current completely balances the photocurrent.
40.
The original exploration of the PV effect can be accredited to research published by Henri Becquerel in 1839 . Becquerel noticed the generation of a photocurrent after illumination when he submerged platinum electrodes within an aqueous solution of either silver chloride or silver bromide.
