The values of all the parameters obtained by fitting of EIS data with equivalent circuit.

Sample	R 1 (ohm)	C 2 (F)	R 2 (ohm)	C 3 (F)	R 3 (ohm)
mCdS@HPEc-g-PANi	192.8	0.869 3 × 10−9	1035	1.26 × 10−3	7882
CdS@HPEc-g-PANi	9.767	0.104 7 × 10−9	1142	0.8214 × 10−3	10 526
HPEc-g-PANi	500	0.527 8 × 10−9	610.9	7.66 × 10−3	41 029