Figure 8. SCL characteristics for Au-inverted OSCs measured at room temperature (T = 300 K).

Left graphs are photocurrents versus effective applied voltage at different incident light intensities. (a) Au-planar-inverted OSCs, and (c) Au-grating-inverted OSCs. Light intensity is varied from 100, 63, 40, 25, to 10 mW/cm² by using neutral density filters. The black solid lines in (a) represent the square-root dependence of photocurrent on effective applied voltage (SCL region). Right graphs are photocurrents versus incident light intensity at different effective applied voltages. (b) Au-planar-inverted OSCs, and (d) Au-grating-inverted OSCs.