Bridging the Buried Interface with Piperazine Dihydriodide Layer for High Performance Inverted Solar Cells

Small, Год журнала: 2023, Номер 19(29)

Опубликована: Апрель 8, 2023

Given that it is closely related to perovskite crystallization and interfacial trap densities, buried engineering crucial for creating effective stable solar cells. Compared with the in-depth studies on defect at top interface, exploring of side film relatively complicated scanty owing non-exposed feature. Herein, degradation process probed from films continuous illumination its effects morphology photoelectronic characteristics a facile lift-off method. Additionally, buffer layer Piperazine Dihydriodide (PDI2 ) inserted into imbedded bottom interface. The PDI2 able lubricate mismatched thermal expansion between substrate, resulting in release lattice strain thus void-free With layer, originates growing voids increasing non-radiative recombination interfaces are suppressed effectively, leading prolonged operation lifetime As result, power conversion efficiency an optimized p-i-n inverted photovoltaic device reaches 23.47% (with certified 23.42%) unencapsulated devices maintain 90.27% initial after 800 h light soaking.

Язык: Английский

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Unraveling the modification effect at NiO_x/perovskite interfaces for efficient and stable inverted perovskite solar cells

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(42), С. 22982 - 22991

Опубликована: Янв. 1, 2023

The modification with 4-iodophenylboronic acid (4-IPBA) is optimal due to the strongest coordination Ni vacancies and best energy level alignment perovskite.

Язык: Английский

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Interface Reactive Sputtering of Transparent Electrode for High‐Performance Monolithic and Stacked Perovskite Tandem Solar Cells

Advanced Materials, Год журнала: 2024, Номер 36(26)

Опубликована: Апрель 14, 2024

Sputtered indium tin oxide (ITO) fulfills the requirements of top transparent electrodes (TTEs) in semitransparent perovskite solar cells (PSCs) and stacked tandem (TSCs), as well recombination layers monolithic TSCs. However, high-energy ITO particles will cause damage to devices. Herein, interface reactive sputtering strategy is proposed construct cost-effective TTEs with high transmittance excellent carrier transporting ability. Polyethylenimine (PEI) chosen reactant that can react sputtered nanoparticles, so that, coordination compounds be formed during deposition process, facilitating transport at C

Язык: Английский

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Holistic dielectric and buffer interfacial layers enable high-efficiency perovskite solar cells and modules

Nano Energy, Год журнала: 2024, Номер 124, С. 109507 - 109507

Опубликована: Март 15, 2024

Язык: Английский

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Building Scalable Buried Interface for High‐Performance Perovskite Photovoltaic Devices

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Март 29, 2024

Abstract The quality of the buried interface plays a key role in achieving high‐performance perovskite solar cells (PSCs). However, it is challenging to guarantee its on larger area, which pivotal for commercialization PSCs. Here, facile strategy developed modify SnO 2 /perovskite by incorporating L‐Aspartic acid monosodium salt (ASP‐Na) into colloidal dispersion. ASP‐Na with multidentate ligands can coordinate Sn form stable dispersion, inhibiting agglomeration nanoparticles at interface. In addition, coordination between and turn promotes uniform distribution ASP‐Na, facilitates effective passivation defects. Consequently, treatment improves device efficiency from 23.44% 25.47% (certified 25.02%) an aperture area 0.0797 cm without hysteresis enhances operation stability. mini‐module achieves 20.11% 18.30 , demonstrating potential scalability.

Язык: Английский

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Triple Cross‐Linking Engineering Strategies for Efficient and Stable Inverted Flexible Perovskite Solar Cells

Small, Год журнала: 2024, Номер 20(29)

Опубликована: Фев. 17, 2024

Inverted flexible perovskite solar cells (fPSCs) are promising for commercialization due to their low cost, lightweight, and excellent stability. However, enhancing fPSCs' power conversion efficiency stability remains challenging. Here, an unprecedented triple cross-linking engineering strategy is innovatively exhibit efficient stable inverted fPSCs. First, a carefully designed cross-linker, 4-fluorophenyl 5-(1,2-dithiolan-3-yl) pentanoate (FB-TA), added the precursor solution. During film's crystallization at temperature, product of FB-TA can passivate grain boundaries reduce residual strain Young's module. Then, also introduced bottom- top-interface modification film. The interfacial treating protects from water invasion strengthens interfaces. combination strategies affords highly fPSCs with champion 21.42% among state-of-the-art based on nickel oxides. More importantly, devices superior stabilities T

Язык: Английский

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Efficiency Improvement of Lead‐Free La₂NiMnO₆‐Based Double Perovskite Solar Cells Using Numerical Simulation

Energy Technology, Год журнала: 2024, Номер 12(5)

Опубликована: Фев. 24, 2024

In this work, the efficiency of lead‐free La 2 NiMnO 6 (LNMO)‐based double perovskite solar cells is optimized using cell capacitance simulator (SCAPS‐1D). Herein, device performance boosted by different combinations electron‐transport layers, hole‐transport absorber layer thickness, acceptor doping density, defect and bandgap tuning, modifying electron affinity. To make more realistic, proposed carefully modified in presence interface density ≈10 −13 cm −3 , series resistance ≈1 Ω shunt ≈6000 respectively. From findings, exhibits a record open‐circuit voltage = 1.23 V, short‐circuit current 27.18 mA −2 fill factor 87.14%, power conversion 29.20% for FTO/SnO /LNMO/MoO 3 /Au configuration. Finally, tested under working temperatures, 300 K found as best temperature device.

Язык: Английский

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Bottom-up nucleation induced conformal crystallization for inverted MA-free perovskite solar cells on textured substrates

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159390 - 159390

Опубликована: Янв. 8, 2025

Язык: Английский

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Improved Device Performance and Stability of Less Toxic Solvent-Processed Perovskite Solar Cells with Self-Assembled Molecules

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

Recently, organic–inorganic hybrid perovskite solar cells (PSCs) have attracted extensive research interest. At present, the main solvent commonly used in precursor solution is N,N-dimethylformamide (DMF), but DMF highly toxic with high volatility at room temperature, which not conducive to large-scale promotion of cells. N-Methyl pyrrolidone (NMP) considered be a green less toxicity, and it can biodegrade harm human body environment, commercialization wide-scale adoption PSCs. However, harmful chemical reactions mismatched energy levels between film prepared by using NMP as single for NiOx layer limit photoelectric performance Therefore, we introduced MeO-2PACz optimize lower interface film, resulted higher quality thereby improving conversion efficiency (PCE) stability As result, NiOx/MeO-2 Pacz-based PSCs achieved champion PCE 17.69%, currently highest that NMP-processed films. In addition, device maintains above 80% initial value after being stored air 25 °C relative humidity 20–30% 600 h.

Язык: Английский

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Enhancing Performance of NiO_x‐Based Inverted Perovskite Solar Cells: Advances in Buried Interface Material Modification Strategy

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Abstract Inverted perovskite solar cells (PSCs) have become a current research hotspot due to their advantages such as low‐temperature preparation, low hysteresis, and compatibility with stacked other cells. NiO x , metal oxide hole transport layer material, is widely used in inverted PSCs. However, challenges high defect density, intrinsic conductivity, unfavorable valence band mismatch at the /perovskite interface hinder further improvement of device performance. Therefore, enhancing buried between layers crucial for optimizing This review systematically categorizes materials based on types, including organic small molecules, self‐assembled monolayers (SAMs), polymers, salts. Additionally, it incorporates strategies, introduction low‐dimensional materials, doping, advancements deposition technology. By reviewing technologies past 2 years, this article aims provide insights achieve more efficient stable ‐based Finally, we also discuss future directions challenges.

Язык: Английский

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