Table 1. Average Lateral Size (According to TEM), Thickness, and the Cu/In/S/Zn Atomic Ratio of In2S3, CIS, and ZCIS NPls.
| NPl sample | lateral dimension (nm) | thickness (nm) | ratio of the element | 
|---|---|---|---|
| In2S3 NPls | 25 ± 5 | 2.5 ± 0.5 | In/S = 0.7:1 | 
| CIS NPls | 35 ± 5 | 3.5 ± 0.3 | Cu/In/S = 0.42:0.52:1 | 
| ZCIS NPls | 45 ± 5 | 4.1 ± 0.3 | Zn/Cu/In/S = 0.29:0.38:0.42:1 |