Molecular Bridging of Buried Interface Flattens Grain Boundary Grooves and Imparts Stress Relaxation for Performance Enhancement and UV Stability in Perovskite Solar Cells DOI
Wei Cheng, Peng Huang, Zhijie Gao

и другие.

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 3, 2025

Abstract The limitations imposed by interfacial voids and residual stress fundamentally constrain the stability performance ceiling of perovskite solar cells (PSCs). Herein, study engineers a molecular bridge placement ectoine (Ec) at SnO 2 /perovskite interface. experimental investigations coupled with first‐principles density functional theory (DFT) calculations reveal that carboxyl group preferentially passivates uncoordinated Sn 4+ defects oxygen vacancies in , while imine establishes robust coordination Pb ⁺ ions to passivate 2+ defects. bi‐anchoring bridging mechanism facilitates release, flattens grain boundary grooves, significantly suppresses nonradiative recombination. In turn, Ec‐modified PSCs achieve power conversion efficiency (PCE) 24.68% (vs 22.56% for control). Significantly, unencapsulated Ec show improved UV stability, retaining 80.12% initial PCE after 130 h (equivalent 1412 irradiation) under 365 nm ultraviolet irradiation (50 mW cm −2 ). uncovers role as optimize buried interface effective yet stable cell fabrication.

Язык: Английский

25.91%‐Efficiency and Durable Inverted Perovskite Solar Cells Enabled by a Multifunctional Molecule Mediated Precursor Engineering DOI Open Access

Yuqi Yao,

Qi Wang, Xin Chen

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 15, 2024

The stability of the precursor is essential for producing high-quality perovskite films with minimal non-radiative recombination. In this study, methionine sulfoxide (MTSO), which features multiple electron-donation sites, strategically chosen as a stabilizer and crystal growth mediator inverted solar cells (PSCs). MTSO stabilizes by inhibiting oxidation iodide ions passivates charged traps through coordination hydrogen bonding interactions. This leads to enhanced crystallinity, reduced recombination, decreased internal residual stress in film. As result, remarkable power conversion efficiencies 25.91% (certified 25.76%) voltage deficit 0.36 V 0.09-cm

Язык: Английский

Процитировано

3

Regulating Bifacial Surface Potential of Perovskite Film Enables Efficient Perovskite Solar Cells Universal for Different Charge Transport Layers DOI
Hao Huang, Yingying Yang, Benyu Liu

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

Abstract Planar perovskite solar cells (PSCs) show huge promise as an efficient photovoltaic technology, where the inefficient carrier transport at hetero‐interface largely limits their performance advancement. Herein, bifacial surface potential regulation is realized in a monolithic film through interface doping, leading to optimized dual‐interfacial energy level alignment. In n‐i‐p planar device, up‐shift of Fermi on bottom first achieved bottom‐up diffusion Li + . Then, vitamin D2 incorporated into methoxy‐Phenethylammonium iodide (MeO‐PEAI) passivator, which can neutralize top induced by MeO‐PEAI passivation and further induce its down‐shift. Both experimental measurements theoretical simulation reveal that effectively promotes interfacial reduces recombination, enhancing adaptability PSCs different charge materials. Impressively, with 2,2′,7,7′‐Tetrakis [N, N‐di(4‐methoxyphenyl) amino]‐9,9′‐spirobifluorene (Spiro‐OMeTAD) 2,4,6‐Trimethyl‐N, N‐diphenylaniline (PTAA) achieve efficiencies 26.05% (certificated 25.80%) 24.65%, respectively. Besides, device maintain 99% highest efficiency after aging more than 2200 h ambient air relative humidity ≈20%, showing excellent stability.

Язык: Английский

Процитировано

0

A review of metal oxide semiconductors: Progress in solution-processed photovoltaic Technologies DOI

Jiangkai Yu,

Yan Dou,

Ju Zhao

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180207 - 180207

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Making Cells “Greener:” Research Progress of Natural Green Plant Extracts in Perovskite Solar Cells DOI
Yuan He, Yong Li,

Ang Gao

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 4, 2025

Abstract Perovskite solar cells (PSCs) have great potential as a third‐generation emerging photovoltaic technology. Nevertheless, the perovskite films prepared by conventional solution methods are plagued large number of defects, which not only serve nonradiative recombination centers, but also more susceptible to influence water/oxygen/light in environment, further degrading film quality. To address this challenge, additive engineering has been widely applied PSCs. This review summarizes research progress low‐cost, natural, environmentally friendly, and nontoxic plant extracts improving device performance. Specifically, advantages limitations different kinds PSCs, analysis each layer adjacent interface Furthermore, effects applications on PSCs discussed from four aspects, namely, regulating crystallinity crystals, stability, adjusting energy levels, innovative applications. Finally, prospects role development large‐scale industrialization.

Язык: Английский

Процитировано

0

Molecular Bridging of Buried Interface Flattens Grain Boundary Grooves and Imparts Stress Relaxation for Performance Enhancement and UV Stability in Perovskite Solar Cells DOI
Wei Cheng, Peng Huang, Zhijie Gao

и другие.

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 3, 2025

Abstract The limitations imposed by interfacial voids and residual stress fundamentally constrain the stability performance ceiling of perovskite solar cells (PSCs). Herein, study engineers a molecular bridge placement ectoine (Ec) at SnO 2 /perovskite interface. experimental investigations coupled with first‐principles density functional theory (DFT) calculations reveal that carboxyl group preferentially passivates uncoordinated Sn 4+ defects oxygen vacancies in , while imine establishes robust coordination Pb ⁺ ions to passivate 2+ defects. bi‐anchoring bridging mechanism facilitates release, flattens grain boundary grooves, significantly suppresses nonradiative recombination. In turn, Ec‐modified PSCs achieve power conversion efficiency (PCE) 24.68% (vs 22.56% for control). Significantly, unencapsulated Ec show improved UV stability, retaining 80.12% initial PCE after 130 h (equivalent 1412 irradiation) under 365 nm ultraviolet irradiation (50 mW cm −2 ). uncovers role as optimize buried interface effective yet stable cell fabrication.

Язык: Английский

Процитировано

0