Enhancing Interfacial Contact for Efficient and Stable Inverted Perovskite Solar Cells and Modules DOI Open Access

Zhengtian Tan,

Wenguang Liu, Rui Chen

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Defective perovskite surfaces severely limit the development of inverted solar cells (PSCs). Here, impacts surface treatment are systematically investigated with organic ammonium salts, namely piperidinium iodide (PpI) and piperazinedihydroiodide (PDI), on performance formamidinium‐cesium (FACs)‐based PSCs. These results indicate that PpI, its high dipole moment, tends to form 1D structures surface, which hinders electron transport. By contrast, PDI post‐treatment does not lead formation such structures; instead, it forms a thin passivation layer homogenizes electric potential across surface. This merit in favorable alignment energy levels significant reduction non‐radiative recombination at perovskite/electron transport interface. As result, module (PSM) achieved power conversion efficiency (PCE) 22.08% an aperture area 11.1 cm 2 (certified 21.58%), showing low‐efficiency discrepancy versus small‐area counterpart 25.09%. Notably, PSM can maintain 92.5% initial PCE after continuous 1000 h 1‐sun operation 65 °C ambient air.

Язык: Английский

Bilayer interface engineering through 2D/3D perovskite and surface dipole for inverted perovskite solar modules DOI Creative Commons
Jiarong Wang, Le‐Yu Bi, Xiaofeng Huang

и другие.

eScience, Год журнала: 2024, Номер unknown, С. 100308 - 100308

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

18
Minimizing Buried Interface Energy Losses with Post‐Assembled Chelating Molecular Bridges for High‐Performance and Stable Inverted Perovskite Solar Cells DOI Open Access
Bo Yu, Kai Wang, Yapeng Sun

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Self‐assembled monolayers (SAMs) as hole‐collecting materials have made remarkable progress in inverted perovskite solar cells (PSCs). However, the incomplete coverage of SAMs and non‐intimate interface contact between perovskite/SAMs usually cause inferior characteristics significant energy losses at heterojunction interface. Herein, a post‐assembled chelating molecular bridge strategy using 5‐(9H‐carbazol‐9‐yl)isophthalicacid (CB‐PA) is developed to modify buried It found that CB‐PA can be chemically coupled with MeO‐2PACz through π–π stacking carbazole groups, chelate by forming double C═O···Pb bonds, thus constructing bridge‐connected promote carrier extraction. Simultaneously, fill voids form dense hybrid SAMs, resulting uniform surface potential improved contact. Moreover, treatment also tends induce oriented crystallization films, passivate defects, release lattice stress Consequently, CB‐PA‐based PSCs achieve champion efficiency 25.27% superior operational stability, retaining ≈94% their initial after maximum power point (MPP) tracking (65 °C) for 1000 h ISOS‐L‐2I protocol. This work provides an innovative address challenges high‐performance PSCs.

Язык: Английский

Процитировано

4
Rationally designed universal passivator for high-performance single-junction and tandem perovskite solar cells DOI Creative Commons

Zuolin Zhang,

Yinsu Feng,

Jike Ding

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 17, 2025

Interfacial trap-assisted nonradiative recombination hampers the development of metal halide perovskite solar cells (PSCs). Herein, we report a rationally designed universal passivator to realize highly efficient and stable single junction tandem PSCs. Multiple defects are simultaneously passivated by synergistic effect anion cation. Moreover, defect healing is precisely modulated carefully controlling number hydrogen atoms on cations steric hindrance. Due minimized interfacial energy loss, L-valine benzyl ester p-toluenesulfonate (VBETS) modified inverted PSCs deliver power conversion efficiency (PCE) 26.28% using vacuum flash processing technology. suppressing carrier recombination, large-area modules with an aperture area 32.144 cm2 perovskite/Si coupled VBETS passivation PCE 21.00% 30.98%, respectively. This work highlights critical role hindrance in designing molecular modulators advance stability

Язык: Английский

Процитировано

2
Co‐Adsorbent Boosting the Performance of Perovskite Solar Cell Based on Hole‐Selective Self‐Assembled Molecules DOI
Yujun Liu, Chao Zhou, Fei Wang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract The inverted perovskite solar cells based on hole‐selective self‐assembled molecules (SAMs) have been setting new efficiency benchmarks. However, the agglomeration of SAM and lack defect passivation ability are two critical issues that need to be addressed. It is demonstrated by blending co‐adsorbent 4‐phosphoricbutyl ammonium iodide (4PBAI) with 4‐(7H‐dibenzo[c,g]carbazole‐7‐yl) phosphonic acid (4PADCB), enhanced homogeneity, conductivity, better energy levels can realized for co‐SAM contact. functional group 4PBAI also effectively passivate defects at buried interface template high‐quality growth. Assisted synergistic top modification, power conversion optimized device reaches 24.96%, which retain 95% initial after 1200 h in ambient unencapsulated device. findings suggest a well‐designed address limitations further enhance performance cutting‐edge SAMs.

Язык: Английский

Процитировано

2
Reduction of Nonradiative Recombination at Perovskite/C60 Interface in Inverted Perovskite Solar Cells DOI Open Access
Yang Zhang,

Yinjiang Liu,

Zihan Zhao

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Although p‐i‐n type inverted perovskite solar cells (PSCs) achieve excellent photoelectric efficiencies, the nonradiative recombination at perovskite/C 60 interface is still key factor affecting overall efficiency of PSCs. Herein, a synergistic passivation strategy (meta‐fluoro‐phenylethylammonium iodide and piperazine iodide) developed to modify in This facilitates situ reconstruction film obtain smooth flat surface. Furthermore, two molecules work synergistically passivate surface defects, adjust energy levels, bolster electric field, all which reduce losses interface. The optimal PSCs adopting this power conversion 25.85%. (certified value 25.22%). After operating maximum point for 1000 h, 95% initial can be maintained. process universally applicable scalable.

Язык: Английский

Процитировано

2
Solar power conversion: CuI hole transport layer and Ba3NCl3 absorber enable advanced solar cell technology boosting efficiency over 30% DOI Creative Commons
Avijit Ghosh,

Abdullah Al Hossain Newaz,

Abdullah Al Baki

и другие.

RSC Advances, Год журнала: 2024, Номер 14(33), С. 24066 - 24081

Опубликована: Янв. 1, 2024

Researchers are becoming more interested in novel barium-nitride-chloride (Ba 3 NCl ) hybrid perovskite solar cells (HPSCs) due to their remarkable semiconductor properties.

Язык: Английский

Процитировано

16
Minimizing Interfacial Energy Loss and Volatilization of Formamidinium via Polymer‐Assisted D–A supramolecular Self‐Assembly Interface for Inverted Perovskite Solar Cells with 25.78% Efficiency DOI
Congcong Tian,

Anxin Sun,

Rongshan Zhuang

и другие.

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 18, 2024

Abstract 2D perovskite passivation strategies effectively reduce defect‐assisted carrier nonradiative recombination losses on the surface. Nonetheless, severe energy are causing by thermalization, interfacial recombination, and conduction band offset still persist at heterojunction perovskite/PCBM interfaces, which limits further performance enhancement of inverted PSCs. Here, 5,10,15,20‐tetrakis(pentafluorophenyl)porphyrin (5FTPP) is introduced between 3D/2D PCBM. Compared to tetraphenylporphyrin without electron‐withdrawing fluoro‐substituents, 5FTPP can self‐assemble with PCBM interface into donor–acceptor (D–A) complex stronger supramolecular interaction lower transfer losses. This rapid from donor acceptor (PCBM) within femtosecond scale demonstrated enlarge hot extraction rates ranges, reducing thermalization Furthermore, incorporation polystyrene derivative (PD) reinforces D–A inhibiting self‐π–π stacking 5FTPP, while fine‐tuning suppressing via Schottky barrier, dipole, n‐doping. Notably, multidentate anchoring PD‐5FTPP FA + , Pb 2+ I − mitigates adverse effects volatilization during thermal stress. Ultimately, devices achieve a power conversion efficiency 25.78% (certified: 25.36%), maintaining over 90% initial after 1000 h continuous illumination maximum point (65 °C) under ISOS‐L‐2 protocol.

Язык: Английский

Процитировано

14
Advances in inverted perovskite solar cells DOI
Xin Zhang, Shengfan Wu, Hong Zhang

и другие.

Nature Photonics, Год журнала: 2024, Номер unknown

Опубликована: Окт. 28, 2024

Язык: Английский

Процитировано

14
Unraveling the Influence of Solvent on Side Reactions between Formamidinium Lead Triiodide and Methylammonium Cations DOI
Liang Chen, Manman Hu,

Andi Muhammad Risqi

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(14), С. 10159 - 10166

Опубликована: Апрель 1, 2024

Formamidinium lead triiodide (FAPbI3) perovskite thin films are commonly deposited through a solution process, often incorporating specific amount of methylammonium halide to stabilize the α-phase or enhance their crystallinity. The precursor for such coatings significantly influences fabrication solar cells (PSCs), involving time-dependent aging and byproduct formation. chemical principle underlying this behavior is believed be related deprotonation methylamine cations (MA+) subsequent reactions with FA+ generate N-methylformamidinium. Nevertheless, role solvent in side between these organic remains unclear. This work systematically investigates reaction reactivity three protic solvents aprotic solvents. We uncover hidden dimethylamine from hydrolysis products N,N-dimethylformamide, promoting MA+. Additionally, we elucidate impact environmental factors, as water oxygen, stabilizing solutions. establishes basic concept scientific direction rationalizing high-efficiency, reproducible, long-term-stable PSCs.

Язык: Английский

Процитировано

13
Efficient Charge Transport in Inverted Perovskite Solar Cells via 2D/3D Ferroelectric Heterojunction DOI
Zihao Li,

Anxin Sun,

Yiting Zheng

и другие.

Small Methods, Год журнала: 2024, Номер unknown

Опубликована: Апрель 9, 2024

Abstract While the 2D/3D heterojunction is an effective method to improve power conversion efficiency (PCE) of perovskite solar cells (PSCs), carriers are often confined in quantum wells (QWs) due unique structure 2D perovskite, which makes charge transport along out‐of‐plane direction difficult. Here, a ferroelectric formed by 4,4‐difluoropiperidine hydrochloride (2FPD) inverted PSCs reported. The enriched 2 PbI 4 layer with n = 1 on surface exhibits response and has oriented dipoles direction. ferroelectricity dipole facilitates enhancement built‐in electric field (1.06 V) delay cooling process hot carriers, reflected high carrier temperature (above 1400 K) prolonged photobleach recovery time (139.85 fs, measured at bandgap), improving conductivity. In addition, alignment energy levels optimized exciton binding (32.8 meV) reduced changing dielectric environment surface. Finally, 2FPD‐treated achieve PCE 24.82% (certified: 24.38%) synergistic effect defect passivation, while maintaining over 90% their initial after 1000 h maximum point tracking.

Язык: Английский

Процитировано

10