Dipole Moments Regulation of Biphosphonic Acid Molecules for Self-assembled Monolayers Boosts the Efficiency of Organic Solar Cells Exceeding 19.7% DOI
Huan Liu,

Yufei Xin,

Zhaochen Suo

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(20), P. 14287 - 14296

Published: May 8, 2024

PEDOT:PSS has been widely used as a hole extraction layer (HEL) in organic solar cells (OSCs). However, their acidic nature can potentially corrode the indium tin oxide (ITO) electrode over time, leading to adverse effects on longevity of OSCs. Herein, we have developed class biphosphonic acid molecules with tunable dipole moments for self-assembled monolayers (SAMs), namely, 3-BPIC(i), 3-BPIC, and 3-BPIC-F, which exhibit an increasing moment sequence. Compared centrosymmetric axisymmetric 3-BPIC 3-BPIC-F higher adsorption energies (Eads) ITO, shorter interface spacing, more uniform coverage ITO surface, better interfacial compatibility active layer. Thanks incorporation fluorine atoms, exhibits deeper highest occupied molecular orbital (HOMO) energy level larger compared resulting enlarged work function (WF) ITO/3-BPIC-F substrate. These advantages could not only improve within device but also lower impedance reduce nonradiative recombination at interface. As result, OSCs using SAM based obtained record high efficiency 19.71%, is than that achieved from 3-BPIC(i) (13.54%) (19.34%). Importantly, 3-BPIC-F-based significantly enhanced stability utilizing HEL. Our offers guidance future design functional SAMs realize even performance cells.

Language: Английский

Stabilized hole-selective layer for high-performance inverted p-i-n perovskite solar cells DOI
Zhen Li, Xianglang Sun, Xiaopeng Zheng

et al.

Science, Journal Year: 2023, Volume and Issue: 382(6668), P. 284 - 289

Published: Oct. 19, 2023

P-i-n geometry perovskite solar cells (PSCs) offer simplified fabrication, greater amenability to charge extraction layers, and low-temperature processing over n-i-p counterparts. Self-assembled monolayers (SAMs) can enhance the performance of p-i-n PSCs but ultrathin SAMs be thermally unstable. We report a robust hole-selective layer comprised nickel oxide (NiOx) nanoparticle film with surface-anchored (4-(3,11-dimethoxy-7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (MeO-4PADBC) SAM that improve stabilize NiOx/perovskite interface. The energetic alignment favorable contact binding between NiOx/MeO-4PADBC reduced voltage deficit various compositions led strong interface toughening effects under thermal stress. resulting 1.53-electron-volt devices achieved 25.6% certified power conversion efficiency maintained >90% their initial after continuously operating at 65 degrees Celsius for 1200 hours 1-sun illumination.

Language: Английский

Citations

356
Bimolecularly passivated interface enables efficient and stable inverted perovskite solar cells DOI
Cheng Liu, Yi Yang, Hao Chen

et al.

Science, Journal Year: 2023, Volume and Issue: 382(6672), P. 810 - 815

Published: Nov. 16, 2023

Compared with the n-i-p structure, inverted (p-i-n) perovskite solar cells (PSCs) promise increased operating stability, but these photovoltaic often exhibit lower power conversion efficiencies (PCEs) because of nonradiative recombination losses, particularly at perovskite/C60 interface. We passivated surface defects and enabled reflection minority carriers from interface into bulk using two types functional molecules. used sulfur-modified methylthio molecules to passivate suppress through strong coordination hydrogen bonding, along diammonium repel reduce contact-induced achieved field-effect passivation. This approach led a fivefold longer carrier lifetime one-third photoluminescence quantum yield loss certified quasi-steady-state PCE 25.1% for PSCs stable operation 65°C >2000 hours in ambient air. also fabricated monolithic all-perovskite tandem 28.1% PCE.

Language: Английский

Citations

345
Buried interface molecular hybrid for inverted perovskite solar cells DOI

Sanwan Liu,

Jingbai Li,

Wenshan Xiao

et al.

Nature, Journal Year: 2024, Volume and Issue: 632(8025), P. 536 - 542

Published: June 26, 2024

Language: Английский

Citations

333
Stability of organic solar cells: toward commercial applications DOI
Pengfei Ding, Daobin Yang,

Shuncheng Yang

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(5), P. 2350 - 2387

Published: Jan. 1, 2024

Organic solar cells (OSCs) have attracted a great deal of attention in the field clean energy due to their advantages transparency, flexibility, low cost and light weight. Introducing them market enables seamless integration into buildings windows, while also supporting wearable, portable electronics internet-of-things (IoT) devices. With development photovoltaic materials optimization fabrication technology, power conversion efficiencies (PCEs) OSCs rapidly improved now exceed 20%. However, there is significant lack focus on material stability device lifetime, causing severe hindrance commercial applications. In this review, we carefully review important strategies employed improve over past three years from perspectives design engineering. Furthermore, analyze discuss current progress terms air, light, thermal mechanical stability. Finally, propose future research directions overcome challenges achieving highly stable OSCs. We expect that will contribute solving problem OSCs, eventually paving way for applications near future.

Language: Английский

Citations

123
Multifunctional ytterbium oxide buffer for perovskite solar cells DOI
Peng Chen,

Yun Xiao,

Juntao Hu

et al.

Nature, Journal Year: 2024, Volume and Issue: 625(7995), P. 516 - 522

Published: Jan. 17, 2024

Language: Английский

Citations

105
Rapid advances enabling high-performance inverted perovskite solar cells DOI
Qi Jiang, Kai Zhu

Nature Reviews Materials, Journal Year: 2024, Volume and Issue: 9(6), P. 399 - 419

Published: May 17, 2024

Language: Английский

Citations

105
peri-Fused polyaromatic molecular contacts for perovskite solar cells DOI
Ke Zhao, Qingqing Liu,

Libing Yao

et al.

Nature, Journal Year: 2024, Volume and Issue: 632(8024), P. 301 - 306

Published: July 24, 2024

Language: Английский

Citations

87
High Open‐Circuit Voltage (1.197 V) in Large‐Area (1 cm2) Inverted Perovskite Solar Cell via Interface Planarization and Highly Polar Self‐Assembled Monolayer DOI

Anxin Sun,

Congcong Tian,

Rongshan Zhuang

et al.

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
Inhibition of halide oxidation and deprotonation of organic cations with dimethylammonium formate for air-processed p–i–n perovskite solar cells DOI
Hongguang Meng, Kaitian Mao, Fengchun Cai

et al.

Nature Energy, Journal Year: 2024, Volume and Issue: 9(5), P. 536 - 547

Published: Feb. 26, 2024

Language: Английский

Citations

82
Strategies for Improving Efficiency and Stability of Inverted Perovskite Solar Cells DOI
Wenxiao Zhang, Xuemin Guo,

Zhengbo Cui

et al.

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