photocurrent


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photocurrent

[¦fōd·ō′kə·rənt]
(physical chemistry)
An electric current induced at an electrode by radiant energy.
References in periodicals archive ?
Photocurrent density voltage curves to DSSC coated by Doctor Blading and Spin Coating methods with FTO/Ti[O.sub.2] film sintered at 450[degrees]C and 450[degrees]C/0.4[degrees]C [s.sup.-1] under solar illumination of 100 mW [cm.sup.-2].
Hence, the photocurrent dropped due to the inefficient light harvest.
For the photovoltaic effect, photocurrents are generated through accelerating photogenerated electron-hole pairs to respective electrodes by a built-in electrical field at the junction where doping levels of graphene are different at two sides [47].
Figures 5(a) and 5(b) show transient photocurrent properties of Sample 1 under -0.3 V (Figure 5(a)) and +0.3 V (Figure 5(b)) bias relative to Ag/AgCl reference electrode.
Under simulated solar irradiation, the photocurrent intensity of the [W.sub.18][O.sub.49] device was roughly 8 times, about 500 times, and even 1000 times larger than that of the [W.sub.19][O.sub.55], W[O.sub.2.90], and W[O.sub.3] one, respectively.
For the input photocurrent is about a few pA ([10.sup.-12] A), the T-type switch is essential to reduce the current leakage.
The morphological features obtained allow for a homogeneous sensitization of the entire oxide layer and high overall photocurrent efficiencies (n) [39].
Sensitivity, speed, responsivity, quantum efficiency, photocurrent gain and power dissipation are the important characteristics of a photodetector.
Assuming that the receiver integrates photocurrent for each bit period and removes bias due to background illumination [10], the photocurrent output is modelled as
The output photocurrent of photodiode PD0 is proportional to [C.sub.M,O,m] [dot encirle] [C.sub.M',O',m'], and that of photodiode PD1 is proportional to [C.sub.M,O+1,m] [dot encirle] [C.sub.M',O',m'].
Pairs of three different types of paint electrodes with a size of 5 mm x 5 mm and separation of 5 mm were printed on the surface of the films for the photocurrent measurements.