20.500.12556/RUL-167557 Reducing voltage loss via dipole tuning for electron-transport in efficient and stable perovskite-silicon tandem solar cells ▫$C_{60}$▫ is a widely used electron selective material for p–i–n perovskite cells, however, its energy level does not match well with that of a wide-bandgap perovskite, resulting in low open-circuit voltage ▫$(V_{OC})$▫ and fill factor (FF). To overcome this issue, ultra-thin LiF has been widely used as an interlayer between ▫$C_{60}$▫ and perovskite layers facilitating efficient electron extraction but resulting in instability. In this work, the use of a piperidinium bromide (PpBr) is reported as an interlayer between ▫$C_{60}$▫ and perovskite, and the interlayer further is optimized by introducing an additional oxygen atom on the opposite side of the ▫$NH_{2}+$▫. This results in morpholinium bromide (MLBr) with increased dipole moment. Because of this, MLBr is highly effective in minimizing the energy band mismatch between perovskite and ▫$C_{60}$▫ layer for electron extraction while at the same time passivating defects. The champion single junction 1.67 eV MLBr solar cell produced a PCE of 21.9% and the champion monolithic MLBr perovskite-Si tandem cell produced a PCE of 28.8%. Most importantly, both encapsulated MLBr and PpBr devices retain over 97% of their initial efficiency after 400 thermal cycles (between −40 and 85 °C), twice the number of cycles specified by the International Electrotechnical Commission (IEC) 61215 photovoltaic module standard. charge extraction dipole moment electron selective layer International Electrotechnical Commission (IEC) 61215 Thermal Cycling perovskitesilicon tandem device ločevanje naboja dipolni moment selektivna plast za elektrone Mednarodna elektrotehniška komisija (IEC)= 61215 – termično ciklanje perovskitna-silicijeva tandemska sončna celica true false true Angleški jezik Slovenski jezik Članek v reviji 2025-02-27 14:58:54 2025-02-27 14:59:02 2025-02-28 04:00:12 0000-00-00 00:00:00 2024 0 0 8 str. iss. 40, art. 2401029 Vol. 14 Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.383.51 1614-6840 10.1002/aenm.202401029 202838787 Advanced_Energy_Materials_-_2024_-_Wang_-_Reducing_Voltage_Loss_via_Dipole_Tuning_for_Electron‐Transport_in_Efficient_and.pdf Advanced_Energy_Materials_-_2024_-_Wang_-_Reducing_Voltage_Loss_via_Dipole_Tuning_for_Electron‐Transport_in_Efficient_and.pdf 1 8A54A77038A57E99092C2969F65C5727 7690f2e84d55a377953f03390127ff6069c4f64a06ada190dff8051de59bd5f2 35e49583-f512-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200205 https://onlinelibrary.wiley.com/doi/10.1002/aenm.202401029 1 155e5d4b-f512-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200204 Fakulteta za elektrotehniko 0 0 0