Table 1.

Simulated values derived from Electrochemical Impedance Spectroscopy (EIS) analysis.

	R1(Ω)	R2(Ω)	CPE1(F)	n1	CPE2	n2
ITO-TPh	96.6	4.536 × 104	6.55 × 10−7	0.97	2.64 × 10−5	0.54
ITO-TPh-AuNP-TPh	85.3	3.055 × 104	8.29 × 10−8	0.98	3.23 × 10−5
ITO-AuNPs-TPh	119.0	67.6	8.92 × 10−8	0.78	3.71 × 10−6
ITO-AuNP-TPh-AuNP-TPh	75.8	2.52 × 103	1.45 × 10−7	0.88	2.88 × 10−5	0.66