Figure 6
From: Dense Ge nanocrystals embedded in TiO2 with exponentially increased photoconduction by field effect
(a) Schematic of coplanar samples for dark and photocurrent measurements. (b) Experimental temperature dependence (curves with symbols) of the dark current for 7 V measured on samples Sasd, S550 and S700 and corresponding fit curves (continuous lines). For sample S550, the components of the fit curve are provided by the dashed lines representing the first and second terms in eq. 3, respectively. (c) The dark I–V dependence at different temperatures for sample S550. Inset shows the voltage dependence of conductance G.
