Research Article

Electrochemical Deposition of CuxSnySzO Thin Films and Their Application for Heterojunction Solar Cells

Table 1

Deposition conditions and the corresponding film thickness and composition. CuSO4 concentration was 10 mM and Na2S2O3 concentration 100 mM. Data in the parentheses are for the film fabricated by 5 min deposition. All other data are for the 30-min-deposited films. The deposition potential of condition 5 is a two-step pulse potential with  V versus SCE,  V versus SCE, and each pulse duration was 10 s.

SnSO4 [mM]Deposition potential [V versus SCE]Thickness [μm]Cu : Sn : S : O

Condition 13−0.800.50
(0.15)
1.7 : 0.084 : 0.13 : 1.0
(2.5 : 0.47 : 0.52 : 1.0)
Condition 26−0.820.302.1 : 0.50 : 0.60 : 1.0
Condition 39−0.850.352.1 : 0.49 : 0.79 : 1.0
Condition 412−0.870.302.6 : 0.71 : 0.90 : 1.0
Condition 530two-step pulse2.50.97 : 0.68 : 1.3 : 1.0