Acta Physica Sinica, Volume. 69, Issue 11, 118801-1(2020)
Fig. 1. Schematic diagram of working principle in (a) inverted and (b) regular planar heterojunction MAPbI3 solar cells.
Fig. 2. The PCE of inverted perovskite solar cells for (a) ITO/HTM/MAPbI3/PC61BM/Al, (b) ITO/HTM/MAPbI3/TiO2/Al, and (c) ITO/HTM/MAPbI3/ZnO/Al simulated with the MAPbI3 thickness. Front and back contact work function: 4.6 eV (ITO) and 4.3 eV (Al), respectively.
Fig. 3. Simulation for PCE and FF of inverted perovskite solar cells for (a) ITO/CuO2/MAPbI3/ETM/Al, (b) ITO/CuSCN/MAPbI3/ETM/Al, and (c) ITO/NiO
Fig. 4.
Table 1. AMPS-1D parameters set for MAPbI3 and ETM.
View tableView in ArticleTable 1. AMPS-1D parameters set for MAPbI3 and ETM.
Parameters MAPbI3 ZnO TiO2 PC61BM Dielectric constant 23.3[ 22 ]8.12[ 25 ]100[ 30 ]3.9[ 18 ]Band gap/eV 1.51[ 23 ]3.40[ 26 ]3.2[ 31 ]1.9[ 9 ]Electron affinity/eV 3.93[ 23 ]4.19[ 27 ]4.0[ 31 ]3.9[ 9 ]Thickness/nm 40-400 90 90 90 Electron and hole mobility/cm2·V–1·s–1 50, 50[ 24 ]150, 0.0001[ 28 ]0.006, 0.006[ 30 ]0.0005, 0.0001[ 18 ]Acceptor concentration/cm–3 (2.14 × 1017)[ 23 ]0 0 0 Donor concentration/cm–3 0 (5 × 1019)[ 29 ](5 × 1019)[ 30 ]5 × 1019 Effective conduction band density/cm–3 1.66 × 1019 4.49 × 1018 1.0 × 1021 2.5 × 1020 Effective valence band density/cm–3 5.41 × 1018 5.39 × 1018 2.0 × 1020 2.5 × 1020
Table 2. AMPS-1D parameters set for HTM.
View tableView in ArticleTable 2. AMPS-1D parameters set for HTM.
Parameters CuSCN NiOx Cu2O Dielectric constant 10[ 32 ]11.9[ 36 ]8.8[ 40 ]Band gap/eV 3.4[ 33 ]3.7[ 37 ]2.17[ 41 ]Electron affinity/eV 1.9[ 33 ]1.5[ 38 ]3.3[ 42 ]Thickness/nm 200 200 200 Electron and hole mobility/cm2·V–1·s–1 0.0001, 0.01—0.10[ 34 ]0.0001, 120[ 39 ]0.0001, 10[ 43 ]Acceptor concentration/cm–3 (5 × 1018)[ 35 ](2.66 × 1017)[ 15 ](5 × 1015)[ 43 ]Donor concentration/cm–3 0 0 0 Effective conduction band density/cm–3 1.79 × 1019 2.5 × 1019 2.5 × 1019 Effective valence band density/cm–3 2.51 × 1019 2.5 × 1019 2.5 × 1019
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Ao Zhang, Chun-Xiu Zhang, Yun-Lin Chen, Chun-Mei Zhang, Tao Meng.
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Received: Jan. 13, 2020
Accepted: --
Published Online: Dec. 2, 2020
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