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Trap Concentration

From formula (A-2), the trap concentration is obtained as follows.

Also, approximate concentration without considering λ region is obtained from formula (A-5).

As described above, the deep level parameters (energy level, capture cross-section) and concentration can be measured by the DLTS method.
However, with this method, it is accompanied by temperature increases / decreases to obtain multiple Arrhenius plot points, which takes a great deal of effort to repeat the measurements in differing rate windows.

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