High Open‐Circuit Voltage and Efficiency CsPbI3 Perovskite Solar Cells Achieved by Hole Transport Layer Modification DOI Open Access
Zihao Fan, Yuwei Duan,

Meizi Wu

et al.

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

Published: Dec. 27, 2024

Abstract The lithium bis(trifluoromethane) sulfonimide salt (Li‐TFSI) and 4‐tert‐butylpyridine ( t ‐BP) codoped 2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenylamine)‐9,9′‐spirobifluorene (Spiro‐OMeTAD) is a very classic dominant hole transport layer (HTL) for the fabrication of high‐efficiency perovskite solar cells (PSCs). However, PSCs based Spiro‐OMeTAD often shows poor stability due to hygroscopic Li‐TFSI that prone ion migration, volatile ‐BP, time‐consuming oxidation in air. Herein, hydrophobic 1,2‐Bis(perfluoropyridin‐4‐yl)disulfane (BPFPDS) designed optimize Spiro‐OMeTAD. S‐Li, F‐Li, N‐Li synergistic interaction between BPFPDS inhibited Li + property balanced humidity sensitivity Li‐TFSI, which prevented both ions water molecules from corroding layer. In addition, F‐N superamolecular ‐BP restricted volatility indirectly migration ions. As result, BPFPDS‐treated CsPbI 3 PSC engendered respectable efficiency 21.95% an impressive open‐circuit voltage V OC ) 1.29 V. devices sustained 96% 98% their efficiencies after aging air 3000 h tracking at maximum power point 1200 h, respectively.

Language: Английский

Manipulating Intermediate Surface Energy for High‐Performance All‐Inorganic Perovskite Photovoltaics DOI Open Access
Hui Lü, Qian Wen,

Ru Qin

et al.

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

Published: Jan. 5, 2025

Abstract The complete phase transition from DMAPbI 3 and Cs 4 PbI 6 intermediates to the final CsPbI perovskite is pivotal for fabricating high‐quality inorganic films. In this study, reaction energy barrier between sought be reduced by increasing their surface energy, where a perfluorinated compound designed using DFT modeling saturate of effectively prevent crystalline growth. Consequently, smaller with ultrahigh react more energetically facilitate rapid conversion desired phase. It found that resultant shows improved crystallinity morphology, as demonstrated suppressed non‐radiative recombination prolonged carrier lifetimes. As result, optimized solar cells (PSCs) achieve power efficiency (PCE) over 20%, along significantly light thermal stability. This work provides way regulate crystallization dynamics advanced quality perovskites.

Language: Английский

Citations

2
Colloidally Uniform Single Crystal Precursors Enable Uniform FAPbI3 Films for Efficient Perovskite Submodules DOI Creative Commons
Yugang Liang,

Yingping Fan,

Zhixiao Qin

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

With the unprecedented research development on lead halide perovskite photovoltaics, scaling up fabrication while comprehensively understanding properties of cost-effective and highly uniform precursor films has become critical for their practical application. When enlarging device area, good purity serves as first step in ensuring uniformity film. Chemical colloidal solution both play important roles dictating film defect density. Here, time, we explored behavior FAPbI3 precursors using different preparatory materials varied costs but with similar metal purity. As size regular PbI2 + FAI powder increased compared to that colloids, single-crystal synthesized from low-purity chemicals exhibited a generally smaller more size, which yielded improved reduced density at lower cost. The colloidally led photovoltaics higher power conversion efficiency better long-term operational stability. More importantly, was found be beneficial large-area fabrication, where scaling-up production 30 cm × submodules based achieved an impressive 20.7% efficiency.

Language: Английский

Citations

0
2D Capping Layer Passivation toward Inorganic CsPbI3 Perovskite Minimodule DOI Open Access

Haifei Wang,

Bowei Li, Fang Liu

et al.

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

Published: March 27, 2025

Abstract Surface termination is so far the mainstream passivating method to enhance performance of CsPbI 3 solar cells. However, surface can hardly achieve effective and homogeneous passivation on large‐area films, which one key challenge toward high‐performance inorganic perovskite modules (PSMs). The strong ionic bond between Cs Pb‐I framework in makes it difficult construct 2D layer film via post treatment, otherwise a classic effectual approach for defect elimination organic–inorganic hybrid perovskites. Herein, novel programmable reconstruction strategy reported that facilely tune using 2‐(1‐cyclohexenyl) ethyl ammonium iodide (CHEAI). In comparison termination, situ formation CHEA 2 PbI 4 by adjusting stoichiometry CHEAI demonstrates more comprehensive effects favorable energy level alignment films. Such construction has greatly facilitated enhancement device performance, especially when scaling up area. optimal PSM (active area 12.44 cm ) based achieves record‐high efficiency 19.32% (certified 18.83%) with much improved stability, endorsing practical promotion this intrinsically stable material.

Language: Английский

Citations

0
Methylammonium-Free Perovskite Photovoltaic Modules DOI
Liang Chu,

Jinguo Cao,

Congcong Wu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

For perovskite photovoltaic industrialization, it is essential to simultaneously achieve high conversion efficiency, long-term stability, and scalable fabrication of modules. Halide perovskites with the ABX3 structure are composed A-site monovalent cations, (e.g., formamidinium (FA+), methylammonium (MA+), Cs+), B-site divalent cations (predominantly Pb2+), X-site halide anions. Though incorporated MA can facilitate nucleation growth films, their volatility undermines thermal stability. α-FAPbI3 exhibits an optimal bandgap, but both α-CsPbI3 susceptible converting into nonphotoactive δ-phase at room temperature. However, FACsPbI3 alloy effectively counteracts imperfections in tolerance factor, enabling formation a room-temperature photoactive phase. Hence, development large-area, high-quality, MA-free films remains substantial challenge for efficient This review first discusses impact on phase stability structures subsequently examines film mechanism. Then, we summarize modules highlight advances CsPbX3 (Br–/I–), FAPbI3, FACsPbX3 systems. Finally, propose potential directions challenges toward industrialization.

Language: Английский

Citations

0
Assessing the effect of excess PbI2 on the photovoltaic performance of CsPbI3 all-inorganic perovskite solar cells DOI
Liu Zhang, Wenchuan Wang,

Yunxiao Wei

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112548 - 112548

Published: April 1, 2025

Language: Английский

Citations

0
Buried Interface Regulation with TbCl3 for Highly-Efficient All-Inorganic Perovskite/Silicon Tandem Solar Cells DOI Creative Commons

Wenming Chai,

Weidong Zhu, He Xi

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: April 30, 2025

Abstract All-inorganic perovskite materials exhibit exceptional thermal stability and promising candidates for tandem devices, while their application is still in the initial stage. Here, a metal halide doping strategy was implemented to enhance device performance inverted CsPbI 3 solar cells (PSCs), which are ideal integration into perovskite/silicon cells. The lanthanide compound terbium chloride (TbCl ) employed improve buried interface between [4-(3,6-Dimethyl-9H-carbazol-9-yl) butyl] phosphonic acid (Me-4PACz) layer, thereby enhancing crystallinity of films passivating non-radiative recombination defects. Thus, PSCs achieved an efficiency 18.68% demonstrated excellent against water oxygen. Meanwhile, remarkable efficiencies 29.40% 25.44% were, respectively, four-terminal (4T) two-terminal (2T) mechanically higher among reported all-inorganic perovskite-based This study presents novel approach fabricating highly efficient stable

Language: Английский

Citations

0
Synergistic effect of DMAI degradation inhibition and perfluorinated passivation for high performance inorganic perovskite photovoltaics DOI
Hui Lü, Jiaqi Wang,

Yunhui Han

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163282 - 163282

Published: May 1, 2025

Language: Английский

Citations

0
Highlights of mainstream solar cell efficiencies in 2024 DOI
Wenzhong Shen, Yixin Zhao, Feng Liu

et al.

Frontiers in Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Language: Английский

Citations

0
CsF Improved Buried Interface for Efficient and Stable Inverted All-inorganic CsPbI2.85Br0.15 Perovskite Solar Cells DOI

Zhicheng Song,

Wenming Chai,

Weidong Zhu

et al.

Materials Today Energy, Journal Year: 2024, Volume and Issue: unknown, P. 101763 - 101763

Published: Dec. 1, 2024

Language: Английский

Citations

0
High Open‐Circuit Voltage and Efficiency CsPbI3 Perovskite Solar Cells Achieved by Hole Transport Layer Modification DOI Open Access
Zihao Fan, Yuwei Duan,

Meizi Wu

et al.

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

Published: Dec. 27, 2024

Abstract The lithium bis(trifluoromethane) sulfonimide salt (Li‐TFSI) and 4‐tert‐butylpyridine ( t ‐BP) codoped 2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenylamine)‐9,9′‐spirobifluorene (Spiro‐OMeTAD) is a very classic dominant hole transport layer (HTL) for the fabrication of high‐efficiency perovskite solar cells (PSCs). However, PSCs based Spiro‐OMeTAD often shows poor stability due to hygroscopic Li‐TFSI that prone ion migration, volatile ‐BP, time‐consuming oxidation in air. Herein, hydrophobic 1,2‐Bis(perfluoropyridin‐4‐yl)disulfane (BPFPDS) designed optimize Spiro‐OMeTAD. S‐Li, F‐Li, N‐Li synergistic interaction between BPFPDS inhibited Li + property balanced humidity sensitivity Li‐TFSI, which prevented both ions water molecules from corroding layer. In addition, F‐N superamolecular ‐BP restricted volatility indirectly migration ions. As result, BPFPDS‐treated CsPbI 3 PSC engendered respectable efficiency 21.95% an impressive open‐circuit voltage V OC ) 1.29 V. devices sustained 96% 98% their efficiencies after aging air 3000 h tracking at maximum power point 1200 h, respectively.

Language: Английский

Citations

0