Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Oct. 23, 2024
Fullerene derivatives are extensively employed in inverted perovskite solar cells due to their excellent electron extraction capabilities. However, [6,6]-phenyl-C
Language: Английский
Science, Journal Year: 2024, Volume and Issue: 383(6688), P. 1236 - 1240
Published: March 14, 2024
Power conversion efficiencies (PCEs) of inverted perovskite solar cells (PSCs) have been improved by the use a self-assembled monolayer (SAM) hole transport layer. Long-term stability PSCs requires keeping SAM compact under layer during operation. We found that strong polar solvents in precursor desorb if it is anchored on substrates hydrogen-bonded, rather than covalently bonded, hydroxyl groups. used atomic-layer deposition to create an indium tin oxide substrate with fully covalent hydroxyl-covered surface for anchoring, as well trimethoxysilane group exhibited tridentate anchoring substrate. The resulting achieved PCEs 24.8 (certified 24.6) and 23.2% aperture areas 0.08 1.01 square centimeters, respectively. devices retained 98.9 98.2% initial PCE after 1000 hours damp-heat test operation maximum power point tracking at 85°C 1200 standard illumination,
Language: Английский
Citations
170
Nature, Journal Year: 2024, Volume and Issue: 628(8006), P. 93 - 98
Published: Feb. 21, 2024
Language: Английский
Citations
168
Nature Reviews Materials, Journal Year: 2024, Volume and Issue: 9(6), P. 399 - 419
Published: May 17, 2024
Language: Английский
Citations
105
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(8)
Published: Jan. 2, 2024
Abstract The efficiency loss caused by area scaling is one of the key factors hindering industrial development perovskite solar cells. energy and contact issues in buried interface are main reasons. Here, a new self‐assembled monolayer (SAM), Ph‐4PACz, with large dipole moment (2.32 D) obtained . It found that Ph‐4PACz high polarity can improve band alignment minimize , resulting an open‐circuit voltage ( V oc ) as 1.2 for 1.55 eV perovskite. However, when applied to large‐area devices, fill factor (FF) still suffered from significant attenuation. Therefore, alumina nanoparticles (Al 2 O 3 ‐NPs) introduced between rough FTO substrate further flatness conformal film almost no voids interface, thus promoting low exciton binding energy, fast hot‐carrier extraction non‐radiative recombination. final devices achieved small‐area power conversion (PCE) 25.60% (1 cm PCE 24.61% (certified at 24.48%), which represents highest single device ≥ 1 area. Additionally, mini‐modules stability testing also carried out demonstrate feasibility commercialization.
Language: Английский
Citations
82
Advanced Electronic Materials, Journal Year: 2024, Volume and Issue: 10(5)
Published: March 5, 2024
Abstract In the backdrop of today's environmental priorities, where toxicity and stability hinder lead‐based perovskite solar cell (PSC) progress, emergence lead‐free alternatives like Cs 2 AgBiBr 6 perovskites has gained significance. This study revolves around comprehensive evaluation as a potential photovoltaic (PV) material, using density functional theory (DFT) calculations with CASTEP. Revealing vital bandgap 1.654 eV emphasizing contributions Ag‐4 d Br‐4 p orbitals, this analysis also underscores Ag atoms' dominance in charge distribution. Optically, exhibits UV absorption peaks 15 eV, intensifying photon energy up to 3.75 hinting at its promise for applications. Guided by DFT, forty configurations involving various electron transport layers (ETLs) hole (HTLs) are explored. Among these, CNTS emerges prime HTL due ideal absorber alignment. The spotlight architecture, FTO/AZnO/Cs /CNTS/Au, boasts exceptional efficiency (23.5%), V oc (1.38 V), J sc (21.38 mA cm −2 ), FF (79.9%). contrast, FTO/CdZnS/Cs /CNTS/Au achieves slightly lower 23.15% efficiency. Real‐world intricacies probed, encompassing resistances, temperature, current–voltage ( – ) traits, quantum (QE), enhancing practical relevance. These findings thoughtfully contextualized within prior literature, showcasing study's non‐toxic, inorganic technology. work aspires positively steer sustainable PV advancement.
Language: Английский
Citations
78
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Jan. 29, 2024
Abstract Molecular passivation is a prominent approach for improving the performance and operation stability of halide perovskite solar cells (HPSCs). Herein, we reveal discernible effects diammonium molecules with either an aryl or alkyl core onto Methylammonium-free perovskites. Piperazine dihydriodide (PZDI), characterized by core-electron cloud-rich-NH terminal, proves effective in mitigating surface bulk defects modifying chemistry interfacial energy band, ultimately leading to improved carrier extraction. Benefiting from superior PZDI passivation, device achieves impressive efficiency 23.17% (area ~1 cm 2 ) (low open circuit voltage deficit ~0.327 V) along operational stability. We achieve certified ~21.47% ~1.024 inverted HPSC. strengthens adhesion via -NH I Mulliken charge distribution. Device analysis corroborates that stronger bonding interaction attenuates defect densities suppresses ion migration. This work underscores crucial role bifunctional adsorption mitigation, setting stage design charge-regulated molecular enhance
Language: Английский
Citations
73
Nature Energy, Journal Year: 2024, Volume and Issue: 9(7), P. 779 - 792
Published: July 4, 2024
Language: Английский
Citations
71
Chem, Journal Year: 2023, Volume and Issue: 10(1), P. 35 - 47
Published: Sept. 29, 2023
Language: Английский
Citations
59
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)
Published: March 1, 2024
Abstract Perovskite solar cells (PSCs) have attracted widespread research and commercialization attention because of their high power conversion efficiency (PCE) low fabrication cost. The long‐term stability PSCs should satisfy industrial requirements for photovoltaic devices. Inverted with a p‐i‐n architecture exhibit considerable advantages excellent competitive efficiency. continuously broken‐through PCE inverted shows huge application potential. This review summarizes the developments outlines characteristics including charge transport layers (CTLs), perovskite compositions, interfacial regulation strategies. latest effective CTLs, modification, promotion strategies especially under light, thermal, bias conditions are emphatically analyzed. Furthermore, applications structure in high‐efficiency stable tandem, flexible devices, modules main obstacles systematically introduced. Finally, remaining challenges faced by devices discussed, several directions advancing proposed according to development status industrialization requirements.
Language: Английский
Citations
57
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 18, 2024
Abstract Inverted perovskite solar cells (PSCs) comprising formamidinium‐cesium (FA‐Cs) lead triiodide have garnered considerable attention due to their impressive efficiency and remarkable stability. Nevertheless, synthesizing high‐quality FA‐Cs alloyed films presents challenges, primarily attributable the intricate interphase process involved absence of methylammonium (MA + ) mixed halogens. Here, additive 3‐phosphonopropanoic acid (3‐PPA) is introduced, with bifunctional phosphonic groups, into precursor modulate crystal growth provide passivation at grain boundaries. In situ characterization reveals that 3‐PPA can form a “rapid nucleation, slow growth” mechanism, resulting in enlarged grains enhanced crystallinity. addition, serves passivate boundary defects release residual strain by forming molecular bridging, leading passivated achieving fluorescence lifetime 5.79 microseconds favorable n‐type contact interface. As result, devices incorporating achieve champion power conversion (PCE) 24.05% an ultra‐high fill factor (FF) 84.22%. More importantly, optimized exhibit satisfactory stability under various testing conditions. The findings underscore pivotal role multifunctional additives crystallization control defect for high‐performance MA‐free pure iodine PSCs.
Language: Английский
Citations
54