Minimizing the buried interfacial energy loss using a fluorine-substituted small molecule for 25.92%-efficiency and stable inverted perovskite solar cells

Energy & Environmental Science, Год журнала: 2024, Номер 17(19), С. 7342 - 7354

Опубликована: Янв. 1, 2024

Tetrafluorosuccinic acid was introduced into the buried interface to stabilize FA cations, mediate crystal growth of perovskite and reduce hole-transport barrier, delivering a record efficiency 25.92% for RbCsFAMA-based solar cells.

Язык: Английский

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Photochemical Shield Enabling Highly Efficient Perovskite Photovoltaics

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 14, 2024

Oxygen is difficult to be physically removed. will excited by light form free radicals which further attack the lattice of perovskite. The stabilization α-FAPbI

Язык: Английский

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Reshaped buried interface by comprehensive passivation for highly efficient perovskite photovoltaics

Chemical Engineering Journal, Год журнала: 2024, Номер 488, С. 150815 - 150815

Опубликована: Март 29, 2024

Язык: Английский

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Boosting All‐Perovskite Tandem Solar Cells by Revitalizing the Buried Tin‐Lead Perovskite Interface

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 29, 2024

Narrow-bandgap (NBG) mixed tin-lead (Sn-Pb) perovskite solar cells (PSCs) serve as crucial top subcells in all-perovskite tandem (TSCs). However, the prevalent use of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) hole transport layers (HTLs) NBG PSCs compromises device efficiency and stability. To address this, study proposes a revitalizing strategy for buried interface Sn-Pb perovskites by directly immersing acetylcholine chloride (ACh) into PEDOT: PSS. ACh acts proficient "diver," not only modulating bottom PSS HTLs but also facilitating reconstruction significantly enhancing quality layers. This intervention with prevents Sn

Язык: Английский

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Bridging buried interface enable 24.67%-efficiency doctor-bladed perovskite solar cells in ambient condition

Nano Research, Год журнала: 2024, Номер 17(9), С. 8068 - 8076

Опубликована: Апрель 15, 2024

Язык: Английский

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Photoexcitation-induced passivation of SnO2 thin film for efficient perovskite solar cells

National Science Review, Год журнала: 2023, Номер 10(11)

Опубликована: Сен. 12, 2023

A high-quality tin oxide electron transport layer (ETL) is a key common factor to achieve high-performance perovskite solar cells (PSCs). However, the conventional annealing technique prepare ETLs by continuous heating under near-equilibrium conditions requires high temperatures and long fabrication time. Alternatively, we present non-equilibrium, photoexcitation-induced passivation that uses multiple ultrashort laser pulses. The ultrafast photoexcitation following electron-electron electron-phonon scattering processes induce efficiently passivate surface bulk defects, improve crystallinity of SnO2, resulting in suppressing carrier recombination facilitating charge between ETL interface. By rapidly scanning beam, time reduced several minutes, which much more efficient compared with thermal annealing. To demonstrate university scalability this technique, typical antisolvent antisolvent-free processed hybrid organic-inorganic metal halide PSCs have been fabricated achieved power conversion efficiency (PCE) 24.14% 22.75% respectively, 12-square-centimeter module achieves PCE 20.26%, significantly enhanced performance both stability. This study establishes new approach towards commercialization low-temperature manufacturing PSCs.

Язык: Английский

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Multifunctional buried interface modification for efficient and stable SnO₂-based perovskite solar cells

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(21), С. 12672 - 12680

Опубликована: Янв. 1, 2024

HEDTA-3Na is employed to modify the buried interface for fabricating efficient and stable SnO 2 -based perovskite solar cells.

Язык: Английский

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Dual Defect Passivation at the Buried Interface for Printable Mesoscopic Perovskite Solar Cells with Reduced Open‐Circuit Voltage Loss

Small, Год журнала: 2024, Номер 20(31)

Опубликована: Апрель 26, 2024

Abstract Numerous defects exist at the buried interface between perovskite and adjacent electron transport layers in solar cells, resulting severe non‐radiative recombination excessive open‐circuit voltage ( V OC ) loss. Herein, a dual defect passivation strategy utilizing guanidine sulfate (GUA 2 SO 4 as an modifier is first reported. On one hand, 2− preferentially interacts with Pb‐related defects, generating water‐insoluble lead oxysalts complexes. Additionally, GUA + diffuses into induces formation of low‐dimensional perovskite. These reactions effectively suppress trap states boundaries printable mesoscopic cells (p‐MPSCs), thus increasing carrier lifetime. Meanwhile, optimizes energy band alignment, accelerating charge extraction transfer interface. This synergistic effect alignment modulation strongly demonstrated by increase average 70 mV power conversion efficiency improvement from 17.51% to 18.70%. work provides novel approach efficiently improve performance p‐MPSCs through dual‐targeted

Язык: Английский

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Defect Engineering at Buried Interface of Perovskite Solar Cells

Small Methods, Год журнала: 2024, Номер unknown

Опубликована: Июнь 21, 2024

Abstract Perovskite solar cells (PSC) have developed rapidly since the past decade with aim to produce highly efficient photovoltaic technology at a low cost. Recently, physical and chemical defects buried interface of PSC including vacancies, impurities, lattice strain, voids are identified as next formidable hurdle further advancement performance devices. The presence these has unfavorably impacted many optoelectronic properties in PSC, such band alignment, charge extraction/recombination dynamics, ion migration behavior, hydrophobicity. Herein, broad but critical discussion on various essential aspects related is provided. In particular, existing surface underlying transporting layer (CTL) bottom perovskite film initially elaborated. situ ex characterization approaches adopted unveil hidden elucidated determine their influence efficiency, operational stability, photocurrent–voltage hysteresis PSC. A myriad innovative strategies defect management CTL, introduction passivation materials, strain engineering, morphological control used address also systematically catalyze development more efficient, reliable, commercially viable

Язык: Английский

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High-performance self-powered perovskite photodetectors enabled by Nb2CTx-passivated buried interface

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1004, С. 175903 - 175903

Опубликована: Авг. 6, 2024

Язык: Английский

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