Figure 6

Changes of the effective concentration of charged centers in the space charge region of heterojunctions of blue (upper, at x = 0.67 lfp, a) ) and green (lower, at x = 3 lfp, b) LED's, lfpapproxequal 3.10-6 cm. Values of x and points -squares- experimental data (Figure 4); points - circles luminescent intensity at J = 15 mA (right scale); curves - calculations by equations (6-8).


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