. The Bell System technical journal . only yo their possible diffusion length in\w field. It is seen that for this case the storage effect is very jjronounced andthe susceptance ^ is much larger than G for high frequencies. The function (1 + io^TpY, discussed earlier, corresponds to the limitingcase of () for Lr = ■^-. 3 In Appendix IV ;in ;uial\-tic treatment of Cr is given. p-n JU.\CTIO.\.S l.\ .SKMlLUM)rcmRS 465 //) flic Effect oj a Rcgitvi of Iliiih Rule of Gntcralioii Thore is cvideiux tl\at iniporlCclions, such as surfaces and cracks, addmaterially to ihe rale of ^aneration and recom
. The Bell System technical journal . only yo their possible diffusion length in\w field. It is seen that for this case the storage effect is very jjronounced andthe susceptance ^ is much larger than G for high frequencies. The function (1 + io^TpY, discussed earlier, corresponds to the limitingcase of () for Lr = ■^-. 3 In Appendix IV ;in ;uial\-tic treatment of Cr is given. p-n JU.\CTIO.\.S l.\ .SKMlLUM)rcmRS 465 //) flic Effect oj a Rcgitvi of Iliiih Rule of Gntcralioii Thore is cvideiux tl\at iniporlCclions, such as surfaces and cracks, addmaterially to ihe rale of ^aneration and recombination of holes and elec-trons. If there is a localized region of high recombination rate in the transi-tion region, there will be a pronounced modification of the admittance char-acteristics. In Fig. 8(a) such a layer is represented at .v = 0. In Fig. 8(b)the customary plot of ^p and v?,, versus .v is shown. If we neglect the efTectof the series resistance terms denoted by Rx in Section 3, the change h<p will TRANSITIONREGION. DISTANCE THROUGH SAMPLE, X Fig. 8—The eiYect of a localized layer of high recombination rale on the junction characteristic. (a) Location of layer of high recombination rate. (b) Quasi Fermi levels. (c) Distribution of hole current showing rapid change at layer of high recombinationrate. occur in the /^-region for ^„ and in tlie //-region for per unit area. We sui)pose, further-more, that the layer is so thin that // and p are uniform throughout the net rate of generation is thus .?< = ^Jl - e^-^] () 466 BELL SYSTEM TECHNICAL JOURNAL since for equilibrium conditions the rates balance
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