Fig. 6

Carrier lifetime of (a) ZnOD, (b) ZnOD400, and (c) ZnOD600, extracted by exponential fitting of the decay portion of the photocurrent response after the light is switched off, as shown in Fig. 5a.
Carrier lifetime of (a) ZnOD, (b) ZnOD400, and (c) ZnOD600, extracted by exponential fitting of the decay portion of the photocurrent response after the light is switched off, as shown in Fig. 5a.