Results 241 to 250 of about 2,442,143 (290)

Low dark current logarithmic pixels

48th Midwest Symposium on Circuits and Systems, 2005., 2005
The sensitivity of logarithmic pixels at low light levels is limited by the dark current that flows through the load transistor in the pixel in parallel with the photocurrent. A new layout for a logarithmic pixel is reported that significantly reduces the dark current in the pixel.
B. Choubey, S. Collins
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Dark current related breakdown mechanism

AIP Conference Proceedings, 2013
High power tests of an 805 MHz pillbox cavity for the Muon Collider program have shown that the breakdown related damage increases and the sustainable gradient decreases with the application of a strong external magnetic field. To try to explain these results, a model of dark current associated breakdown was formulated and simulated with the Track3P ...
Faya Wang, Lixin Ge
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Dark Current-Voltage Characterization

2021
Silicon solar cell is a large area diode. Its conversion efficiency is a function of its material (lifetime, diffusion, passivation) and optical (internal scattering, absorption) properties. Dark current-voltage (I-V) response determines electrical performance of the solar cell by providing reliable and accurate information regarding its series and ...
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Low dark current GaAlAsSb photodiodes

Applied Physics Letters, 1982
GaAlAsSb heterostructure low leakage photodiodes have been fabricated. These devices exhibit leakage currents of 7 to 9 nA (25–35 μA/cm2) and capacitances of approximately 1 pF at 20-V reverse bias. The devices are planar Be-implanted structures and have a net donor concentration of 2×1015 cm−3 in Ga1−xAlxAsSb (x∼0.15).
R. Chin, C. M. Hill
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Dark currents in solid benzene

Physics Letters A, 1970
Abstract Current voltage characteristics showing the typical behaviour of space charge limited currents have been measured on thin benzene single crystals. At high voltages, the transition to the quasi-ohmic branch has been observed.
W. Jacobi, J. Schmidt, G. Kleinheins
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Dark energy: current issues

Annalen der Physik, 2006
AbstractThe observed recent accelerated expansion of the Universe constitutes a dramatic departure from traditional views. The mechanism behind this accelerated expansion is still mysterious and is a major challenge to present‐day cosmology. Though it can be due to a new perfect fluid with negative pressure coined Dark Energy, it could also originate ...
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