Non-Toxic Buffer Layers in Flexible Cu(In,Ga)Se₂ Photovoltaic Cell Applications with Optimized Absorber Thickness

Table 3

Comparisons of the improved efficiencies with the relevant experimental results.

Cells	CdS	ZnS	ZnO	ZnS(O,OH)	ZTO	ZnSe	In2S3
Proposed cells	23.23	24.62	23.67	22.02	18.69	22.37	19.12
Reference cells	22.60 [1]	18.10 [12]	20.80 [34]	18.40 [35]	18.20 [11]	19.15 [17]	16.40 [36]