Figure 3. | MRS Internet Journal of Nitride Semiconductor Research

Figure 3.

From: Deep Centers and Persistent Photoconductivity Studies in Variously Grown GaN Films

Figure 3.

C-T curves for various GaN samples measured at 1 kHz when cooling in the dark (1, 2, 3, 4) and after illumination with the deuterium UV lamp at 85K (1’, 2’, 3’, 4’). Curves 1, 1’ are for sample 598, 2, 2’ for sample B95, 3, 3’ for sample 646. Also shown are the cooling down and heat-up curves for sample B95 illuminated with UV light and quenched with forward bias pulse of 0.8 V (curves 4, 4’; note that only the signal from PPC due to ET4 trap can be seen).

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