Table 2.

Tandem structures quantitative evaluation.

Properties	Sn_Ti_HL	Sn_Ti_HB	Zn_Ti_HL	Zn_Ti_HB
Thickness (μm)*	2.14	2.93	1.93	2.24
Volume (cm3)	12.56 × 10−5	14.33 × 10−5	10.23 × 10−5	11.68 × 10−5
Density (g/cm3)	8.8	6.3	7.2	5.8
Weight (g)	11.05 × 10−4	9.02 × 10−4	7.36 × 10−4	6.77 × 10−4

^*Calculated from the reflectance spectra at 6° incident angle.