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Space ChargeLimited Current Flow
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anode applied field applied voltage approximation argument atoms blocking contact Bube capture cross section capturing a free capturing centers carrier density charge conduction band contribution per event Coulomb energies crystal Debye length demarcation levels density of carriers density of free dielectric relaxation distribution electric field electrolyte electron affinity electron-occupied electrons and holes energy levels equal equation factor Figure forbidden gap forbidden zone free carriers free electrons free holes free-carrier density gain-bandwidth product Hence increase insulator ionic solid ionization ions kT/e lifetime of free light intensity lying mean free path metal and semiconductor minority carrier Ohmic contact optical photoconductor photocurrent photoexcited photons Phys range ratio RCA Rev recombination centers recombination traffic response semiconductor sensitive set of recombination space space-charge-limited current steady-state Fermi levels supralinearity surface temperature thermal density thermal equilibrium tion transit trap-free vacuum valence band velocity volts