In Situ Forming a 0D Inorganic Perovskite Capping Layer via a Surface Reconstruction Process for High-Performance Inorganic Perovskite Solar Cells DOI
Dongsheng Wang, Long Cheng, Hanqing Liu

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

Inorganic CsPbX3 perovskite solar cells have made great progress over the past several years. Nevertheless, vulnerable surface of deteriorates device stability and impedes further development performance. Herein, a reconstruction method is proposed to in situ construct 0D Cs4PbI1.5Br4.5 capping layer on top 3D CsPbI1.5Br1.5 for simultaneously decreasing defects promoting perovskite. It found that constructing atop not only remarkably enhances but also creates favorable energy level interface charge separation. In addition, this process causes secondary crystallization perovskite, improving quality. These features result remarkable reduction nonradiative recombination. As result, carbon-based exhibits promoted performance with power conversion efficiency up 12.93%. cell without any encapsulation maintains ∼94% original after 1080 h aging under an ambient environment.

Язык: Английский

Synthesis, Structure, and Optoelectronic Properties of a Hybrid Organic–Inorganic Perovskite with a Monoethanolammonium Cation MAxMEA1−xPbI3 DOI Creative Commons
А. А. Ryabko, M. Ovezov, Alexandr Tuchkovsky

и другие.

Nanomaterials, Год журнала: 2025, Номер 15(7), С. 494 - 494

Опубликована: Март 26, 2025

Hybrid organic–inorganic perovskites have emerged as promising materials for next-generation optoelectronic devices owing to their tunable properties and low-cost fabrication. We report the synthesis of 3D hybrid with monoethanolammonium cations. Specifically, we investigated morphological characteristics polycrystalline films MAxMEA1−xPbI3, which contain methylammonium (MA) (MEA) MAxMEA1−xPbI3 crystallizes in a tetragonal perovskite structure. The substitution cations ions led an increase lattice parameters bandgap energy. Energy level diagrams synthesized samples were also constructed. MA0.5MEA0.5PbI3 makes it material use tandem solar cells. These films, namely MA0.25MEA0.75PbI3 fabricated using one-step spin-coating method without antisolvent. exhibit uniform surface morphology under specified deposition parameters. Within scope this study, no evidence dendritic structures or pinhole-type defects observed. All demonstrated photocurrent generation visible light illumination. Moreover, reduced hysteresis I–V characteristics, indicating improved device stability.

Язык: Английский

Процитировано

0

Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells DOI
Xueru Liu,

Xianglong Sun,

Chen Ge

и другие.

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Май 5, 2025

Achieving efficient and stable perovskite solar cells (PSCs) is challenging due to nonradiative recombination, ion migration, film instability. This study designs low-dimensional (LD) ligands─benzimidazole (BIZ), 1H-benzimidazole, 6-methyl-, (6-MeBIm), 6-(trifluoromethyl)-, (6-TFBIm)─to construct LD/3D heterojunctions. Compared with BIZ 6-MeBIm (constructing 1D/3D heterojunction), the 2D/3D heterojunction constructed by 6-TFBIm successfully passivated different defects, resulting in a significant reduction recombination improved carrier transport, leading power conversion efficiency (PCE) of 25.25%, outperforming control devices (PCE: 22.97%). The PSCs exhibit superior humidity thermal stability, maintaining structural integrity under harsh conditions. These results underscore role tailored LD ligands optimizing quality, charge paving way for high-performance durable PSCs.

Язык: Английский

Процитировано

0

Metal-Enhanced Photoluminescence in Perovskite Quantum Dots-hBN-Gold Film Mixed-Dimensional van der Waals Heterostructure DOI

Kunjie Zhou,

Jingyi Zhu, R.L. Meng

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

All-inorganic cesium lead halide perovskite quantum dots (QDs) have emerged as promising materials for next-generation optoelectronic devices due to their exceptional photoluminescence (PL) properties, including high yields and narrow emission line widths. However, unlocking full potential requires innovative strategies further enhance precisely tune fluorescence efficiency. In this work, we present a novel 0D-2D-3D mixed-dimensional van der Waals (vdW) heterostructure comprising CsPbBr3 QDs, multilayer hexagonal boron nitride (hBN), gold (Au) nanoparticle film, achieving remarkable 7-fold PL enhancement. We attribute enhancement the synergy of plasmon-induced incident electromagnetic field an increased spontaneous rate via Purcell effect, optimized by tuning hBN spacer thickness 26 nm. This design provides new insights into metal-enhanced dots, it offers scalable platform efficiency in future applications.

Язык: Английский

Процитировано

0

In Situ Forming a 0D Inorganic Perovskite Capping Layer via a Surface Reconstruction Process for High-Performance Inorganic Perovskite Solar Cells DOI
Dongsheng Wang, Long Cheng, Hanqing Liu

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

Inorganic CsPbX3 perovskite solar cells have made great progress over the past several years. Nevertheless, vulnerable surface of deteriorates device stability and impedes further development performance. Herein, a reconstruction method is proposed to in situ construct 0D Cs4PbI1.5Br4.5 capping layer on top 3D CsPbI1.5Br1.5 for simultaneously decreasing defects promoting perovskite. It found that constructing atop not only remarkably enhances but also creates favorable energy level interface charge separation. In addition, this process causes secondary crystallization perovskite, improving quality. These features result remarkable reduction nonradiative recombination. As result, carbon-based exhibits promoted performance with power conversion efficiency up 12.93%. cell without any encapsulation maintains ∼94% original after 1080 h aging under an ambient environment.

Язык: Английский

Процитировано

0