Fig. 3: Optimization of the anodic layer.
From: Photovoltaic organic interface for neuronal stimulation in the near-infrared
a, b Mean (±s.e.m.) PCD (a) and PV (b) obtained at 730 nm for HTL/PCPDTBT:PC60BM/Ti (black circles, n = 3 chips) and PH1000/PCPDTBT:PC60BM/Ti (grey squares, n = 4 chips). The solid lines are the interpolations with an asymmetrical, five-parameter, logistic dose-response function for PCDs and a hyperbola function for PVs. The vertical red dotted lines represent the normalized irradiance for 730 nm (6 mW mm−2). c, Grand-average PCD (solid line) and PV (dashed line) traces obtained with PH1000/PCPDTBT:PC60BM/Ti with 730 nm at the normalized irradiance (n = 4 chips). d, PV/PCD plot for HTL/P3HT:PC60BM/Ti (white circles, n = 4 chips, 565 nm, 1 mW mm−2), HTL/PCPDTBT:PC60BM/Ti (black circles, n = 3 chips, 730 nm, 6 mW mm−2), and PH1000/PCPDTBT:PC60BM/Ti (grey squares, n = 4 chips, 730 nm, 6 mW mm−2). e Mean (±s.e.m.) PCD and PV obtained with HTL/P3HT:PC60BM/Ti (white bars, 10.46 ± 1.72 µA mm−2, 332.5 ± 5.35 mV, n = 4 chips, 565 nm, 1 mW mm−2), HTL/PCPDTBT:PC60BM/Ti (black bars, 14.65 ± 1.79 µA mm-2, 203.4 ± 42.37 mV, n = 3 chips, 730 nm, 6 mW mm−2), and PH1000/PCPDTBT:PC60BM/Ti (grey bars, 62.28 ± 11.54 µA mm−2, 189.6 ± 11.32 mV, n = 4 chips, 730 nm, 6 mW mm−2), respectively, at their normalized irradiance levels. f Comparison of the PV grand-average traces for HTL/P3HT:PC60BM/Ti (dotted line, n = 4 chips, 565 nm, 1 mW mm−2), HTL/PCPDTBT:PC60BM/Ti (dashed-dotted line, n = 3 chips, 730 nm, 6 mW mm−2), and PH1000/PCPDTBT:PC60BM/Ti (solid line, n = 4 chips, 730 nm, 6 mW mm−2).
