Single-Crystal-Assisted In Situ Phase Reconstruction Enables Efficient and Stable 2D/3D Perovskite Solar Cells

Song, Zonglong; Gao, Yuping; Zou, Yu; Zhang, Hao; Wang, Rui; Chen, Yu; Chen, Yongsheng; Liu, Yongsheng

doi:10.1021/jacs.3c12446

Cited by 12 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained 2D/3D film exhibited reduced trap density, increased carrier mobility, and superior moisture resistance. The optimized 2D/3D devices achieved a champion PCE of 24.87% with a high V oc of 1.185 V. The unencapsulated solar cells demonstrated considerably enhanced operational stability (>97% retention after continuous irradiation for 1500 h) [180].…”

Section: Organic Molecule Inducing Methodmentioning

confidence: 99%

“…Crystal interface inducing method. Crystal interface inducing method was proposed to fabricate 2D/3D PSCs with high 2D crystal stability and efficiency of 3D PSCs [180]. Yang et al demonstrated in situ phase reconstruction of 2D/3D PVKs using a 2D PVK single-crystal-assisted method via the gradient phase distribution of 2D RP PVKs onto the 3D PVK surface, followed by thermal annealing.…”

Section: Organic Molecule Inducing Methodmentioning

confidence: 99%

See 1 more Smart Citation

Annual research review of perovskite solar cells in 2023

Zhou,

Liu,

Liu

et al. 2024

Mater. Futures

View full text Add to dashboard Cite

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

show abstract

Section: Organic Molecule Inducing Methodmentioning

confidence: 99%

Section: Organic Molecule Inducing Methodmentioning

confidence: 99%

Annual research review of perovskite solar cells in 2023

Zhou,

Liu,

Liu

et al. 2024

Mater. Futures

View full text Add to dashboard Cite

show abstract

Surface Terminated 3D/2D Heterojunction Enables Efficient and Stable Perovskite Solar Cells

Ren,

Luo,

Zhang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Bilayer 3D/2D heterojunction perovskite solar cells (PSCs) have attracted increasing interest due to great advantages of high power conversion efficiency (PCE) and ultrastability. Previous studies are mostly focused on addressing the issue of poor charge transport originated from the spacer cations or random phase distribution of 2D perovskite in 3D/2D heterojunction. However, the carrier recombination at the surface of 2D layer is often ignored. Herein, a novel strategy of passivating 2D perovskite in 3D/2D heterojunction with a thin surface termination layer (STL) is proposed. It demonstrates that surface defects of 2D perovskite are terminated by the molecule of 2‐amino‐5‐mercapto‐1,3,4‐thiadiazole through multi‐site interaction, leading to the significant suppression of non‐radiative recombination and considerable improvement of hole transport with the well‐aligned energy band simultaneously. As a result, the PSCs with the constructed 3D/2D/STL structure processed in air have achieved a champion PCE of 25.09% with high open‐circuit voltage of 1.211 V (the voltage deficient of 0.349 V). The unencapsulated devices retain exceeding 90% of the initial PCE after storing in air for 1008 h or under illumination in N2 for 504 h. This work opens up an important, but unnoticed topic of defect passivation of 2D perovskite for 3D/2D heterojunction PSCs.

show abstract

Cross‐Linkable Fullerene Electron Transport Layer with Internal Encapsulation Capability for Efficient and Stable Inverted Perovskite Solar Cells

Hou,

Cheng,

Qiu

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

A stable and compact fullerene electron transport layer (ETL) is crucial for high‐performance inverted perovskite solar cells (PSCs). However, traditional fullerene‐based ETLs like C60 and PCBM are prone to aggregate under operational conditions, a challenge recently recognized by academic and industrial researchers. Here, we designed and synthesized a novel cross‐linkable fullerene molecule, bis((3‐methyloxetan‐3‐yl)methyl) malonate‐C60 monoadduct (BCM), for use as an ETL in PSCs. Upon a low‐temperature annealing at 100 °C, BCM undergoes in‐situ cross‐linking to form a robust cross‐linked BCM (CBCM) film, which demonstrates excellent electron mobility and a suitable band structure for efficient PSCs. Our results show that PSCs incorporating CBCM‐based ETL achieve an impressive efficiency of 25.89% (certified: 25.36%), significantly surpassing the 23.25% efficiency of PCBM‐based devices. The intramolecular covalent interactions within CBCM films effectively prevent aggregation and enhance film compactness, creating an internal encapsulation layer that mitigates the decomposition and ion migration of perovskite components. Consequently, CBCM‐based PSCs show exceptional stability, maintaining 97.8% of their initial efficiency after 1000 hours of maximum power point tracking, compared to only 78.6% retention in PCBM‐based devices after less than 820 hours.

show abstract

Single-Crystal-Assisted In Situ Phase Reconstruction Enables Efficient and Stable 2D/3D Perovskite Solar Cells

Cited by 12 publications

References 48 publications

Annual research review of perovskite solar cells in 2023

Annual research review of perovskite solar cells in 2023

Surface Terminated 3D/2D Heterojunction Enables Efficient and Stable Perovskite Solar Cells

Cross‐Linkable Fullerene Electron Transport Layer with Internal Encapsulation Capability for Efficient and Stable Inverted Perovskite Solar Cells

Contact Info

Product

Resources

About