Charge, capacitive

Under such a condition, the line will maintain a unity p.f. at all points of the line and the reactive power generated, due to the distributed line charging capacitances (Co), is offset by the reactive power absorbed by the distributed line inductances (Lg). The generator is now not unduly stressed by the reactive power feedback, i.e. 

Thus, the expression for the total capacitance of the bare EIS structure, C(space-charge capacitance by means of the electrolyte solution-insulator interface potential (cp) (the capacitances C([Pg.216]

Shi, W., et al., Achieving high specific charge capacitances in Fe304/reducedgraphene oxide nanocomposites. Journal of Materials Chemistry, 2011. 21(10) p. 3422-3427. 

Determination of e and nT(t) can be performed by measuring the reverse current through the diode, or the change in space-charge capacitance. For t > 0 the total current at the plane x = W can be calculated (Sah et al, 1970) as the sum of the conduction current caused by the emission of electrons from traps... 

Indeed, at high bias (Figure 1(d)) the transient current response appears to be solely determined by this pseudo-capacitance, for the capacitance values determined from these scans ( vlO F) are two orders of magnitude larger than typical semiconductor space charge capacitances (12). 

Figure 7. Equivalent circuit for interphase (Raei) resistance of semiconductor (Retec) electrolyte resistance, (Rfar) fara-daic resistance (Csc) space charge capacitance (CDl) double-layer capacitance and (z) parallel impedances associated with surface states, faradaic reactions, etc.

A related analysis follows from a more general consideration of the semiconductor-electrolyte interphase [149] (see Equation 5.14). Because of the usually much larger double-layer capacitance (Cdl > 20 pi 7cm2), the overall capacitance is typically of the same order of magnitude as the space charge capacitance (Csc < 1 pF/cm2). In ACs, the latter is expected to be much larger because of the contribution from surface states, and both contributions are expected to be important. 

It is instructive to recall here the argument offered early by Oren et al. [144] as an explanation for potential-independent space charge capacitance ... 

Fig. 8.11. Equivalent circuit for a photoelectrochemical cell under potentiostatic conditions. The externally measured photocurrent is less than the generated current at high frequencies because the space charge capacitance shunts the cell resistance.

Li and Peter assumed that the space charge capacitance is much smaller than the capacitance of the Helmholtz layer the more generalised theory of Ponomarev and Peter considers the case where the space charge capacitance and Helmholtz capacitances are of comparable magnitude [60]. The attenuated IMPS response is then given by... 

Charging current, elimination of — In practically all analytical applications of voltammetric techniques the elimination of the - charging (capacitive) current (Ic) is an important requirement to decrease the limit of detection, provided that the analytical signal is a faradaic current. In fundamental studies the elimination of capacitive currents is frequently necessary for isolation of the faradaic signals. 

Figure 23. Theoretical space charge capacitance according to Bohnenkamp and Engell as a function of the voltage drop over the boundary - ( i - for intrinsic and doped semiconductors (donor...

During dissolution, if the space charge capacitance is smaller than the WdhtihchVL layer capacitance then a small change in the applied potential (At/appUed) will lead... 

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