Enhancing the Efficiency and Stability of Inverted Formamidinium-Cesium Lead-Triiodide Perovskite Solar Cells through Lewis Base Pretreatment of Buried Interfaces DOI
Jing Wang, Siyu Liu, Xiang Guan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(27), P. 35732 - 35739

Published: June 26, 2024

Mixed components of formamidinium(FA) and cesium (Cs)-based perovskite solar cells are the most hopeful for commercialization owing to their excellent operational phase stabilities, especially devices with inverted structure. The nonradiative recombination carriers can be effectively suppressed through interface optimization, therefore, performance improved. Notably, buried emerges as critical aspects such charge transport, kinetics, morphology films. This study focuses on a straightforward yet effective approach overcome challenges between organic polymers (poly(-triarylamine) (PTAA) FACs-based PTAA substrate is pretreated Lewis base known 2-butynoic acid (BA) C═O functional group. First, it an interfacial buffering layer, harmonizing stress mismatch layers, consequently optimizing crystallization improving film quality. Second, Pb2+ defect passivated at binding group BA molecule. dual-function strategy leads substantial enhancement in both photoelectric conversion efficiency (PCE) stability devices. Finally, PCE device-modified reaches impressive 23.33%. Furthermore, unencapsulated treatment maintain approximately 94% initial after aging maximum power point tracking 1000 h.

Language: Английский

Narrow Bandgap Metal Halide Perovskites for All-Perovskite Tandem Photovoltaics DOI Creative Commons
Shuaifeng Hu, Jarla Thiesbrummel, Jorge Pascual

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 4079 - 4123

Published: March 25, 2024

All-perovskite tandem solar cells are attracting considerable interest in photovoltaics research, owing to their potential surpass the theoretical efficiency limit of single-junction cells, a cost-effective sustainable manner. Thanks bandgap-bowing effect, mixed tin-lead (Sn-Pb) perovskites possess close ideal narrow bandgap for constructing matched with wide-bandgap neat lead-based counterparts. The performance all-perovskite tandems, however, has yet reach its potential. One main obstacles that need be overcome is the─oftentimes─low quality Sn-Pb perovskite films, largely caused by facile oxidation Sn(II) Sn(IV), as well difficult-to-control film crystallization dynamics. Additional detrimental imperfections introduced thin film, particularly at vulnerable surfaces, including top and bottom interfaces grain boundaries. Due these issues, resultant device distinctly far lower than theoretically achievable maximum efficiency. Robust modifications improvements surfaces films therefore critical advancement field. This Review describes origins covers efforts made so toward reaching better understanding perovskites, particular respect surface improved stability cells. In addition, we also outline important issues integrating subcells achieving reliable efficient double- multi-junction tandems. Future work should focus on characterization visualization specific defects, tracking evolution under different external stimuli, guiding turn processing stable cell devices.

Language: Английский

Citations

49
Suppressing Halide Segregation via Pyridine‐Derivative Isomers Enables Efficient 1.68 eV Bandgap Perovskite Solar Cells DOI
Yang Liu, Zheng Fang,

Yongbin Jin

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 24, 2024

Light-induced phase segregation is one of the main issues restricting efficiency and stability wide-bandgap perovskite solar cells (WBG PSCs). Small organic molecules with abundant functional groups can passivate various defects, therefore suppress ionic migration channels for segregation. Herein, a series pyridine-derivative isomers containing amino carboxyl are applied to modify surface. The amino, carboxyl, N-terminal pyridine in all these interact undercoordinated Pb

Language: Английский

Citations

38
Custom-tailored hole transport layer using oxalic acid for high-quality tin-lead perovskites and efficient all-perovskite tandems DOI Creative Commons
Jingwei Zhu, Yuliang Xu, Yi Luo

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(16)

Published: April 19, 2024

All-perovskite tandem solar cells (TSCs) have exhibited higher efficiencies than single-junction perovskite (PSCs) but still suffer from the unsatisfactory performance of low-bandgap (LBG) tin-lead (Sn-Pb) subcells. The inherent properties PEDOT:PSS are crucial to high-performance Sn-Pb films and devices; however, underlying mechanism has not been fully explored revealed. Here, we report a facile oxalic acid treatment (OA-PEDOT:PSS) precisely regulate its work function surface morphology. OA-PEDOT:PSS shows larger an ordered reorientation fiber-shaped film morphology with efficient hole transport pathways, leading formation more ideal hole-selective contact for suppressing interfacial nonradiative recombination losses. Moreover, induces (100) preferred orientation growth higher-quality films. Last, OA-PEDOT:PSS–tailored LBG PSC yields impressive efficiency up 22.56% (certified 21.88%), enabling 27.81% all-perovskite TSC enhanced operational stability.

Language: Английский

Citations

38
Tailoring Perovskite Surface Potential and Chelation Advances Efficient Solar Cells DOI
Wenlong Shao, Haibing Wang,

Shiqiang Fu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 13, 2024

Abstract Modifying perovskite surface using various organic ammonium halide cations has proven to be an effective approach for enhancing the overall performance of solar cells. Nevertheless, impact structural symmetry these on interface termination remained uncertain. Here, this work investigates influence devices, molecules based symmetrical bis(2‐chloroethyl)ammonium cation (B(CE)A + ) and asymmetrical 2‐chloroethylammonium (CEA as layers between hole transport layer. These results reveal that B(CE)A lead a more homogeneous potential comprehensive chelation with uncoordinated Pb 2+ compared cations, resulting in favorable energy band alignment strengthened defect healing. This strategy, leveraging spatial geometrical promotes carrier extraction functional reduces nonradiative recombination surface. Consequently, cells processed achieve power conversion efficiency (PCE) 25.60% retain ≈91% their initial PCE after 500 h maximum point operation. highlights significant benefits utilizing structurally promoting stability

Language: Английский

Citations

30
All-perovskite tandem solar cells: from fundamentals to technological progress DOI Creative Commons
Jae-Keun Lim, Nam‐Gyu Park, Sang Il Seok

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4390 - 4425

Published: Jan. 1, 2024

This review provides fundamental knowledge and development directions towards the commercialising of advantageous all-perovskite tandem solar cells.

Language: Английский

Citations

26
Annual research review of perovskite solar cells in 2023 DOI Creative Commons

Qisen Zhou,

Xiaoxuan Liu, Zonghao Liu

et al.

Materials Futures, Journal Year: 2024, Volume and Issue: 3(2), P. 022102 - 022102

Published: April 24, 2024

Abstract Perovskite (PVK) solar cells (PSCs) have garnered considerable research interest owing to their cost-effectiveness and high efficiency. A systematic annual review of the on PSCs is essential for gaining a comprehensive understanding current trends. Herein, analysis papers reporting key findings in 2023 was conducted. Based results, were categorized into six classifications, including regular n–i–p PSCs, inverted p–i–n PVK-based tandem cells, PVK modules, device stability, lead toxicity green solvents. Subsequently, detailed overview summary advancements within each classification presented. Overall, this serves as valuable resource guiding future endeavors field PSCs.

Language: Английский

Citations

20
Overcoming Phase Segregation in Wide‐Bandgap Perovskites: from Progress to Perspective DOI
Zhimin Fang,

Ting Nie,

Shengzhong Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: May 25, 2024

Abstract Wide‐bandgap (WBG) perovskite solar cells (PSCs) are recognized as promising candidates for diversified photovoltaics (PVs), such tandem devices, indoor PVs, and semitransparent building‐integrated PVs. However, these WBG perovskites made from a mixed‐halides strategy suffer severe phase segregation under continuous illumination, leading to exacerbated non‐radiative recombination, consequently decreased open‐circuit voltage efficiency. In this review, the generation reversal processes of in meticulously introduced. Additionally, major characterization techniques presented. A detailed summary recent progress enhancing photostability PSCs through various strategies is provided. These primarily concentrate on composition regulation, crystallization modulation, inhibition ion migration, strain regulation. Finally, perspectives potential directions carefully discussed promote further development high‐efficiency photostable PSCs.

Language: Английский

Citations

19
Achieving over 42 % indoor efficiency in wide-bandgap perovskite solar cells through optimized interfacial passivation and carrier transport DOI
Zhong‐En Shi,

Ta-Hung Cheng,

Chien‐Yu Lung

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155512 - 155512

Published: Sept. 6, 2024

Language: Английский

Citations

18
Suppressing wide-angle light loss and non-radiative recombination for efficient perovskite solar cells DOI

Yansong Ge,

Likai Zheng, Haibing Wang

et al.

Nature Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Language: Английский

Citations

5
Enhancing Photovoltaically Preferred Orientation in Wide‐Bandgap Perovskite for Efficient All‐Perovskite Tandem Solar Cells DOI Open Access
Zhanghao Wu, Yue Zhao, Changlei Wang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Wide-bandgap perovskite solar cells (WBG PSCs) have promising applications in tandem devices yet suffer from low open-circuit voltages (VOCs) and less stability. To address these issues, the study introduces multifunctional nicotinamide derivatives into WBG PSCs, leveraging regulation on photovoltaically preferential orientation optoelectronic properties via diverse functional groups, e.g., carbonyl, amino. Isonicotinamide (IA) molecule emerges as most effective agent, enhancing crystallization kinetics defect passivation due to its unique planar spatial configuration. Incorporating IA perovskites improves (100) preferred crystal orientation, reduces trap density, enables well-matched energy band alignment. High-performance 1.77 eV PSCs are achieved with a champion power conversion efficiency of 19.34% VOC 1.342 V, leading fabrication best-performing all-perovskite cell PCE 28.53% (certified 28.27%) excellent operational stability, maintaining over 90% initial under 1 sun illumination for 600 h.

Language: Английский

Citations

4