Scalable Slot‐Die Coating of Passivation Layers for Improved Performance of Perovskite Solar Cell Modules

Small Methods, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

Abstract Upscaling the perovskite solar cell (PSC) while avoiding losses in power conversion efficiency presents a substantial challenge, especially when transitioning from ≤1 cm 2 cells to ≥10 modules. In addition fabrication of key functional layers, scalable technologies for surface passivation, considered indispensable achieving high‐performance PSCs, are urgently required. However, studies on this topic remain limited. study, an industry‐ready slot‐die coating method effective passivation films as practical alternative is developed spin‐coating procedures commonly used research. The conditions and molecular structure agent systematically optimized achieve high‐quality film morphology substantially suppress interface recombination. 2‐chloro‐5‐(trifluoromethyl)‐phenylammonium bromide exhibited best results, improving open‐circuit voltage subcells module by 80 ± 4 72 10 mV, respectively. Correspondingly, larger‐area (active area: ) modules sustained highest 21.9% under simulated 1‐sun irradiation. encapsulated devices retained 94% their initial performances after 750 h continuous operation. proposed surface‐passivation technology compatible with high‐throughput processes employable large‐scale PSC fabrication.

Язык: Английский

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Enhanced CO-tolerance of Rh-based catalysts by photo-assisted built-in electric field for efficient formic acid oxidation

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125160 - 125160

Опубликована: Фев. 1, 2025

Язык: Английский

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Endogenous Free-Electron-Involved Coreactant-Free Electrochemiluminescence from Nanoclusters and Its Immunoassay Application

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

All of the commercialized electrochemiluminescence (ECL) immunoassays are automatically conducted at +1.40 V (vs Ag/AgCl) in coreactant route. To alleviate exogenous effect coreactants and simplify operation procedures, herein, a sulfur-vacancy-involved free electron strategy is proposed to exploit Au nanoclusters (NCs) as anodic electrochemiluminophores perform coreactant-free immunoassay. The deficient coordination between sulfhydryl Met core might induce departure partial S atoms enable Met-capped AuNCs (Met-AuNCs) with electron-rich nature. nature tends endow Met-AuNCs unpaired endogenous electrons, which can directly combine holes for light emitting. Coreactant-free ECL around +0.86 consequently conveniently achieved by merely oxidizing anode. qualified determine human carcinoembryonic antigen from 10 5000 pg/mL limit detection 5 pg/mL. Electron paramagnetic resonance provides clear evidence that electrons within play an important role generation ECL. This promising designing nanoelectrochemiluminophores improved immunoassay performance.

Язык: Английский

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Improved vacuum-evaporated blue perovskite light-emitting diodes with phenethylammonium chloride and guanidinium bromide synergistic post-processing modification

Frontiers of Optoelectronics, Год журнала: 2025, Номер 18(1)

Опубликована: Март 24, 2025

Abstract Metal halide perovskites have become one of the most competitive new-generation optoelectronic materials due to their excellent properties. Vacuum evaporation can produce high-purity and large-area films, leading wide application this method in semiconductor industry optoelectronics field. However, electroluminescent performance vacuum-evaporated perovskite light-emitting diodes (PeLEDs) still lags behind those counterparts fabricated by solution methods. Herein, based on vacuum evaporation, 3D films are obtained three-source co-evaporation. Considering unique quantum well structure quasi-2D significantly enhance exciton binding energy improve radiative recombination rate, a high photoluminescence yield (PLQY). Subsequently, highly stable low-defect-density is introduced into through post-treatment with phenethylammonium chloride (PEACl). To minimize degradation film quality caused PEACl treatment, layer guanidinium bromide (GABr) evaporated top treatment further emitting layer. Finally, under synergistic post-processing modification GABr, blue PeLEDs maximum external efficiency (EQE) 6.09% brightness 1325 cd/m 2 successfully obtained. This work deepens understanding 2D/3D heterojunctions provides new approach construct performance. Graphical abstract

Язык: Английский

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Wide-bandgap perovskite solar cells with > 1.34 V Voc for all-perovskite tandems

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163287 - 163287

Опубликована: Май 1, 2025

Язык: Английский

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