Maqola

Interfacial modification of hybrid lead halide perovskite solar cells using Fe2O3/WO3 electron transport bilayer for enhanced efficiency and stability

Aitizaz AliSchool of Information Engineering, Qingdao Hengxing University of Science and Technology, Qingdao, Shandong, ChinaAbu Summama Sadavi BilalDepartment of Mechanical Engineering, Bahauddin Zakariya University, Multan, 60000, PakistanN. C. BanikDepartment of Physics, Northern Illinois University, DeKalb, Illinois 60115, USAMursaleen ShahidDepartment of Industrial Engineering, University of Trento, ItalyHayitov AbdullaDepartment of Transport Technology Systems, Urgench State University, Urgench city, UzbekistanBekzod MadaminovDepartment of General Professional Sciences, Mamun University, Khiva, UzbekistanAkbar Ali QureshiDepartment of Mechanical Engineering, Bahauddin Zakariya University, Multan, 60000, PakistanMuhammad AdnanDepartment of Chemistry, School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, 5000, Australia

Materials Research Bulletinjournal2025en

ABI

Annotatsiya

• Solution-processed Fe 2 O 3 /WO 3 bilayer ETL establishes graded band alignment and enhances electron extraction. • DIPAI surface passivation reduces surface traps and promotes lateral grain growth. • Optimized devices achieve a champion PCE of 18.38% (J SC 22.50 mA·cm -2 , V OC 1.14 V, FF 71.82%). • Bilayer and DIPAI devices retain ∼84.8% of initial PCE under accelerated ambient aging and use low-temperature, scalable processing. In this work, we report an integrated interfacial engineering strategy for high-performance, stable hybrid lead halide perovskite solar cells (PSCs) using an Fe 2 O 3 /WO 3 electron-transport bilayer combined with an interfacial layer (IL) of di-isopropylammonium iodide for surface passivation. The bilayer pairs chemically robust Fe 2 O 3 at the transparent electrode with a WO 3 top layer to produce graded conduction-band alignment, enhanced electron extraction, and UV-resistant hole blocking. Post-deposition IL treatment passivates under-coordinated Pb 2+ sites and reduces surface roughness, leading to improved interfacial quality. The optimized Fe 2 O 3 /WO 3 with IL devices achieved a power-conversion efficiency of 18.38% (J SC = 22.50 mA.cm -2 , V OC = 1.14 V, FF = 71.82%) and exhibits improved reproducibility versus controls. The optimal device retained ∼ 84.8% of initial PCE, outperforming Fe 2 O 3 or WO 3 -only devices. Our results demonstrate that synergistic bilayer ETL engineering combined with molecular surface passivation simultaneously mitigates interfacial recombination and environmental degradation, providing a scalable, low-temperature route to durable, perovskite photovoltaics.

Hali tarjima qilinmagan

Mavzular

Perovskite Materials and Applications TiO2 Photocatalysis and Solar Cells Chalcogenide Semiconductor Thin Films

Identifikatorlar

DOI: 10.1016/j.materresbull.2025.113962

Iqtiboslar va manbalar

0 ta iqtibos38 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar · Tez orada