Space Charge

In conventional photovoltaic cells (affectionately "PVs"), wires on either side of the space-charge region collect the holes and electrons, so they can be forced to drive an external circuit. ❋ Unknown (2005)

The Ph.D. dissertation involved what we would today call hot-electron effects, in the collector space-charge layer of the then-new transistor. ❋ Unknown (2001)

It is concluded that results from a reduction in the electrochemical potential for the formation of vacancies corresponding to the diffusion of the rate-controlling ion in the space-charge at the grain boundary. ❋ Bw (2010)

The retardation could be due to one or more of the following effects of the field on the space-charge zone: (i) an increase in the segregated solute ions, (ii) a decrease in grain boundary energy and (iii) a decrease in solute ion mobility. ❋ Bw (2010)

The calculated magnitude of the space-charge zone width and its temperature and solute composition dependence are in accord with theory and experiment; is attributed mainly to the retardation of grain growth by the field. ❋ Bw (2010)

Extraction at Higher Potential mv2 / r = Bev For a non - ⇒ V ∝ B 17 kV → 25 kV 2 space-charge limited source ½mv2 = eV it should be ⇒ I ∝ B3 35 mA → 62 mA possible to increase output I ∝ ❋ Unknown (2009)

(non - space-charge equilibrium effects are not included). regime ~7. 5 • Avalanche evolution under strong space - log10 Ne (t) ~7 charge regime is characterized by no exponential-growth threshold effective multiplication. ❋ Miguelfm (2010)

measured assuming space-charge saturation at ne, sat = 4.0 107 (for E = 100 kV./cm) Data from: P. Fonte, V. P.skov, NIM A, 477 (2002) 17. ❋ Miguelfm (2010)