Since the capture probability is smaller than one, extra electrons need to be injected and the total photocurrent can become larger than the photoemission current.
22.
As the bulk silicon is thinned, the photocurrent is increased and reaches a peak as the depletion region of the well to substrate junction is reached.
23.
Holes are accelerated by " E drift ", which gives generation photocurrent, or by E scatt, which gives scattering photocurrent . ]]
24.
Holes are accelerated by " E drift ", which gives generation photocurrent, or by E scatt, which gives scattering photocurrent . ]]
25.
On the other hand, the thickness of each AR layer is also chosen to minimize the reflectance at wavelengths for which the photocurrent is the lowest.
26.
;Noise-equivalent power : ( NEP ) The minimum input optical power to generate photocurrent, equal to the rms noise current in a 1 hertz bandwidth.
27.
Because the electrons undergo a " shift " each time they absorb a photon ( on average ), this photocurrent is sometimes called a " shift current ".
28.
The expression for this photocurrent is obtained by adding generation and scattering photocurrents : " I ph = I g + I nscatt + I pscatt ".
29.
Nanotubes can potentially replace indium tin oxide in solar cells as a transparent conductive film in solar cells to allow light to pass to the active layers and generate photocurrent.
30.
One simple expression for the responsivity " R " of a photodetector in which an optical signal is converted into an electric current ( known as a photocurrent ) is
