Efficiency Enhancement Mechanism for Poly(3, 4-ethylenedioxythiophene):Poly(styrenesulfonate)/Silicon Nanowires Hybrid Solar Cells Using Alkali Treatment

Table 1 Photovoltaic properties of the hybrid Si planar, SiNWs, and alkali-treated SiNWs solar cells

Sample	V _oc (V)	J _sc (mA/cm²)	FF (%)	PCE (%)
SiNWs	0.44	29.8	51	7.3
Alkali-treated SiNWs	0.49	34.0	59	9.1
Planar	0.50	17.1	65	6.0