Table 2 Summary of performance parameters of 2T tandem solar cell calculated using SCAPS and TMM simulation and comparison with experimentally reported data using NiO as HTL.
Device architecture | Type of analysis | HTL | Electron affinity χ (eV) | VOC (V) | JSC (mA cm−2) | FF (%) | PCE (%) |
|---|---|---|---|---|---|---|---|
ITO/Cu2O/FA0.8Cs0.2Pb(I0.6Br0.4)3 (\({E}_{g}\sim 1.77 \,{\text{ eV}}\)) (350 nm)/C60/SnO2 /Au/PEDOT:PSS/FA0.7MA0.3Pb0.5Sn0.5I3 (\({E}_{g}\sim 1.22 \,{\text{ eV}}\)) (1050 nm)/C60/SnO2 /Cu | SCAPS + TMM | Cu2O | 2.86 | 2.08 | 14.41 | 80.4 | 24.15 |
3.8 | 2.11 | 14.44 | 81.7 | 24.95 | |||
ITO/Cu–O/FA0.8Cs0.2Pb(I0.6Br0.4)3 (\({E}_{g}\sim 1.77 \,{\text{ eV}}\)) (350 nm)/C60/SnO2 /Au/PEDOT:PSS/FA0.7MA0.3Pb0.5Sn0.5I3 (\({E}_{g}\sim 1.22 \,{\text{ eV}}\)) (1050 nm)/C60/SnO2 /Cu | SCAPS + TMM | Cu–O | 2.84 | 1.72 | 13.96 | 78.00 | 18.54 |
3.8 | 2.115 | 13.74 | 83.5 | 24.27 | |||
ITO/NiO/FA0.8Cs0.2Pb(I0.6Br0.4)3 (Eg-1.77 eV) (350 nm)/C60/SnO2/Au/PEDOT:PSS /FA0.7MA0.3Pb0.5Sn0.5I3(Eg-1.22 eV)(950–1150 nm)/C60/SnO2/Cu | Experimental | NiO | 2.012 | 15.5 | 79.3 | 24.7 (24.2*) |
