Joule, Journal Year: 2024, Volume and Issue: 8(5), P. 1394 - 1411
Published: March 8, 2024
Language: Английский
Nature Reviews Materials, Journal Year: 2023, Volume and Issue: 8(4), P. 261 - 281
Published: Jan. 9, 2023
Language: Английский
Citations
234
Nature Photonics, Journal Year: 2023, Volume and Issue: 17(10), P. 856 - 864
Published: July 6, 2023
Language: Английский
Citations
224
Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)
Published: March 21, 2023
Perovskite-based tandem solar cells have attracted increasing interest because of its great potential to surpass the Shockley-Queisser limit set for single-junction cells. In architectures, wide-bandgap (WBG) perovskites act as front absorber offer higher open-circuit voltage (V
Language: Английский
Citations
112
Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(48)
Published: Sept. 19, 2022
Abstract Perovskite solar cells (PSCs) are rivaling most commercial photovoltaics in the aspect of efficiency and cost, while their intrinsic instability remains a major concern for practical deployment. The presence undesirable strain PSCs during device fabrication operation refers to extension/narrowing chemical bonds expansion/shrinkage lattice volume, which largely affects stability due promoted phase transition, decomposition, mechanical fragility. Pioneering investigations remarkable achievements have revealed that control is indispensable design stable PSCs. Herein, evolution perovskite thin films its effect on performance elucidated, state‐of‐the‐art strategies modulation systematically reviewed. A thorough understanding cautious strain‐related phenomenon pave pathway derive materials with desired properties.
Language: Английский
Citations
74
Nature Energy, Journal Year: 2024, Volume and Issue: 9(6), P. 664 - 676
Published: March 28, 2024
Abstract The presence of mobile ions in metal halide perovskites has been shown to adversely affect the intrinsic stability perovskite solar cells (PSCs). However, actual contribution total degradation loss compared with other factors such as trap-assisted recombination remains poorly understood. Here we reveal that ion-induced internal field screening is dominant factor PSCs under operational conditions. increased leads a decrease steady-state efficiency, often owing large reduction current density. Instead, efficiency at high scan speeds (>1,000 V s −1 ), where are immobilized, much less affected. We also show bulk and interface quality do not degrade upon ageing, yet open-circuit voltage decreases an increase ion This work reveals importance ionic losses for PSC before chemical or extrinsic mechanical effects manifest.
Language: Английский
Citations
69
Advanced Materials, Journal Year: 2023, Volume and Issue: 35(17)
Published: Feb. 8, 2023
Metal halide perovskites are promising as next-generation photovoltaic materials, but stability issues still a huge obstacle to their commercialization. Here, the formation and evolution of cracks in perovskite films during thermal cycling, which affect mechanical stability, investigated. Compressive strain is employed suppress delamination by situ formed polymers with low elastic modulus crystal growth. The resultant devices pass thermal-cycling qualification (IEC61215:2016), retaining 95% initial power conversion efficiency (PCE) compressive after 230 cycles. Meanwhile, p-i-n deliver PCEs 23.91% (0.0805 cm2 ) 23.27% (1 ). findings shed light on engineering respect evolution, enables mechanically stable solar cells.
Language: Английский
Citations
64
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)
Published: March 4, 2024
Abstract CsPbI 3 perovskite receives tremendous attention for photovoltaic applications due to its ideal band gap and good thermal stability. However, solar cells (PSCs) significantly suffer from photovoltage deficits because of serious interfacial energy losses within the PSCs, which a large extent affects performance PSCs. Herein, dipolar chemical bridge (DCB) is constructed between TiO 2 layers lower thus improve charge extraction The results reveal that DCB could form beneficial dipole layers, optimize energetics perovskite/TiO level alignment Meanwhile, also simultaneously passivate surface defects greatly lowering recombination. Consequently, deficit PSCs largely reduced, leading record efficiency 21.86 % being realized. operation stability improved high‐quality films with released tensile strain obtained after forming
Language: Английский
Citations
48
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(33)
Published: April 30, 2024
Abstract Organic self‐assembled molecules (OSAMs) based hole‐transporting materials play a pivotal role in achieving highly efficient and stable inverted perovskite solar cells (IPSCs). However, the reported carbazol‐based OSAMs have serious drawbacks, such as poor wettability for solution spreading due to nonpolar surface, worse matched energy arrangement with perovskite, limited molecular species, which greatly limit device performance. To address above problems, novel OSAM [4‐(3,6‐glycol monomethyl ether‐9H‐carbazol‐9‐yl) butyl]phosphonic acid (GM‐4PACz) was synthesized material by introducing glycol ether (GM) side chains at carbazolyl unit. GM groups enhance surface of Indium Tin Oxide (ITO)/SAM substrate facilitate nucleation growth up film, suppress cation defects, release residual stress SAM/perovskite interface, evaluate level matching perovskite. Consequently, GM‐4PACz IPSC achieves champion PCE 25.52 %, respectable open‐circuit voltage ( V OC ) 1.21 V, high stability, possessing 93.29 % 91.75 their initial efficiency after aging air 2000 h or tracking maximum power point 1000 h, respectively.
Language: Английский
Citations
31
Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109476 - 109476
Published: March 13, 2024
Language: Английский
Citations
22
Nature, Journal Year: 2024, Volume and Issue: 635(8040), P. 882 - 889
Published: Oct. 14, 2024
Language: Английский
Citations
19