PEDOT:PSS on flexible black silicon for a hybrid solar cell on textured polyimide substrate

Silicon nanowire-incorporated efficient and flexible PEDOT:PSS/silicon hybrid solar cells

“…34 The summary of the prior efforts on thin-exible HHSCs have been compared in Table S1 (ESI). † [35][36][37][38][39][40][41] For example, Sharma et al demonstrated 8.6 mm ultrathin-exible HHSCs with PCE of 6.62%, incorporating a 2.1 mm long SiNW structure on top and Ag nanoparticles in the back with device structure Ag/ PEDOT:PSS/SiNW/c-Si/Ag-NS/Al 2 O 3 /Ni-Ag. 35 He et al obtained a PCE of 8.7% on 20 mm thin HHSCs on 180 nm nanopores structured Si wafer, followed by TMAH treatment on a very small active area (0.25 cm 2 ).…”

“…33 SiNW shows lesser material removal, making it a promising candidate for reducing the reflection in the broadband spectral range for thin-flexible Si wafers. 34 The summary of the prior efforts on thin-flexible HHSCs have been compared in Table S1 (ESI) † 35–41 . For example, Sharma et al demonstrated 8.6 μm ultrathin-flexible HHSCs with PCE of 6.62%, incorporating a 2.1 μm long SiNW structure on top and Ag nanoparticles in the back with device structure Ag/PEDOT:PSS/SiNW/c-Si/Ag-NS/Al 2 O 3 /Ni–Ag.…”

“…36 Omar et al investigated flexible (65 μm thick Si) HHSCs with 900 nm SiNW on a textured polyimide substrate (to avoid transmission loss in thin Si HHSCs) and obtained a PCE of just 2.58%. 39 Liu et al could achieve a PCE of 7.79% and 7.29%, respectively, for 45 μm and 23 μm thin SiNW-based HHSCs. 40 The highest PCE achieved for the PEDOT:PSS/Si HHSCs is 9.1% on the SiNW incorporated 14 μm thin Si after TMAH-based post treatment of SiNW as compared to only 6.6% without TMAH treatment.…”