Synthesis and Characterization of CZTS Thin Films by Sol-Gel Method without Sulfurization

Table 1

The amount of starting materials in the two solutions.

Solution	CuCl2·2H2O (mmol)	Zn(ac)2·2H2O (mmol)	SnCl2·2H2O (mmol)	CH4N2S (mmol)	2-metho (mL)	MEA (mL)
Hi-Con	14.4	9.6	8	64	10	1
Lo-Con	3.6	2.4	2	16	10	1