A Dye-Sensitized Solar Cell Using a Composite of PEDOT:PSS and Carbon Derived from Human Hair for a Counter Electrode

Table 2

Photovoltaic parameters and EIS resistances of different counter electrodes.

Counter electrodes	Photovoltaic parameters				Electrochemical impedance spectroscopy
	Jsc (mA cm^−2)	Voc (V)	FF	η (%)	Rs (Ω)	Rtrp (Ω)	Rct (Ω)	RTotal (Ω)
PEDOT	13.03 ± 0.05	0.75 ± 0.0028	0.31 ± 0.01	3.03 ± 0.09	16.17	2.28	152.08	170.53
C0.2P	13.54 ± 0.03	0.76 ± 0.0019	0.46 ± 0.00	4.73 ± 0.02	16.35	1.43	143.65	161.43
C0.4P	14.48 ± 0.04	0.76 ± 0.0025	0.55 ± 0.02	6.05 ± 0.22	16.49	0.84	54.39	71.72
C0.6P	14.85 ± 0.03	0.76 ± 0.0018	0.58 ± 0.01	6.54 ± 0.11	16.76	1.14	7.11	25.01
C0.8P	14.52 ± 0.05	0.75 ± 0.0029	0.58 ± 0.01	6.31 ± 0.11	17.13	2.25	29.98	49.36
Pt	15.64 ± 0.02	0.74 ± 0.0010	0.63 ± 0.00	7.29 ± 0.01	13.48	—	4.58	18.06