An Investigation of Nanocrystalline and Electrochemically Grown Cu₂ZnSnS₄ Thin Film Using Redox Couples of Different Band Offset

Table 1

Standard reduction potential for selected reactions.

No.	Electrode reaction	Standard reduction potential
1	HCHO(aq) + 2H2O + 2e^−⇌ CH3OH + 2OH^−	−0.59 V
2	2CO2(g) + 2H^+ + 2e^−⇌ HOOCCOOH(aq)	−0.49 V
3	Cr^3+ + e^−⇌ Cr^2+	−0.42 V
4	2SO3^2− + 3H2O + 4e^−⇌ S2O3^2−+ 6OH^−	−0.58 V
5	NO2^− + H2O + e^−⇌ NO + 2OH^−	−0.46 V