Multidimensional Modulation via Tailored Covalent Organic Frameworks Enables Stable Inverted Perovskite Solar Cells with 26.21% Efficiency DOI

Tianzhou Yin,

Zimin Zhang,

Hualin Wu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

Abstract Despite the remarkable advancements in inverted perovskite solar cells, their commercialization remains hindered by critical bottlenecks efficiency and stability stemming from inadequate crystallization unfavorable interfacial states. Herein, for first time, a judiciously designed hydrazine‐linked covalent organic framework (COF) with long alkane phosphate branch chains, named 12‐SD‐COF, is synthesized integrated into precursor to achieve multidimensional regulation of crystallization, defect states, charge separation synergistically. It found that 12‐SD‐COF featuring periodic pores, large planar structure, abundant binding groups extruded solution onto buried interface, surface, grain boundaries, facilitating oriented while eliminating defects perovskites, thereby yielding high‐quality crystals suppressed non‐radiative recombination. Simultaneously, synergistically facilitated p‐type doping‐optimized energy level alignment induced intramolecular electric field, ultimately achieving an exceptional power conversion (PCE) 26.21%, highest yet reported COF‐modified. Impressively, non‐encapsulated resultant device delivers greatly improved stabilities, maintaining over 92% initial PCE after being aged under 85 °C continuous heating stress 800 h, 1000 h 50±3% relative humidity air, 1200 1‐sun illumination, respectively.

Language: Английский

Manipulating Intermediate Surface Energy for High‐Performance All‐Inorganic Perovskite Photovoltaics DOI Open Access
Hui Lü, Qian Wen,

Ru Qin

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Abstract The complete phase transition from DMAPbI 3 and Cs 4 PbI 6 intermediates to the final CsPbI perovskite is pivotal for fabricating high‐quality inorganic films. In this study, reaction energy barrier between sought be reduced by increasing their surface energy, where a perfluorinated compound designed using DFT modeling saturate of effectively prevent crystalline growth. Consequently, smaller with ultrahigh react more energetically facilitate rapid conversion desired phase. It found that resultant shows improved crystallinity morphology, as demonstrated suppressed non‐radiative recombination prolonged carrier lifetimes. As result, optimized solar cells (PSCs) achieve power efficiency (PCE) over 20%, along significantly light thermal stability. This work provides way regulate crystallization dynamics advanced quality perovskites.

Language: Английский

Citations

2
Three Birds with One Stone: Construction of Highly Efficient Interfaces via Ammonium Sulfamate Doping SnO2 DOI Open Access
Li Yu, Le Liu, Yilin Chang

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Interface engineering plays a crucial part in optimizing the device performance perovskite solar cells (PSCs). Herein, ammonium sulfamate (ASA) is introduced as multifunctional additive into SnO 2 electron transport layer (ETL) with “three birds one stone” strategy. At first, oxygen vacancy and hydroxyl ligand on surface of nanoparticles causing charge recombination efficiently reduced by incorporating ASA colloidal dispersion. Second, coordination bond SO 3 − anion interaction between NH Pb 2+ construct chemical bridging at interface ETL/perovskite. It significantly enhances interfacial transport. Third, introduction conducive to form high‐quality films larger crystallite size improved crystallinity due optimization buried interface. Consequently, integrated effects both interfaces bulk, ASA‐based delivers an increased efficiency from 20.73% 24.41%. Moreover, optimized displays remarkable retention over 90% its original power conversion after 1000 h under controlled N atmosphere, demonstrating stability enhanced.

Language: Английский

Citations

0
Graphdiyne: The Emerging Energy Conversion Material DOI Open Access
Xinlong Fu, Changshui Huang, Yi Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Global research efforts aimed at substituting fossil fuels with clean energy sources have been intensified to tackle the crisis and associated environmental challenges. Nevertheless, a thorough transition necessitates discovery of new materials that continuously revolutionize efficiency conversion. Graphdiyne (GDY), promising carbon allotrope, has garnered substantial interest across various disciplines. Notably, as an emerging conversion material, GDY exhibits unique structure properties distinguish it from conventional materials, including highly conjugated large π network, rich chemical bonds, non‐uniform charge distribution, well 2D electronic fast transfer channels 3D ionic channels. This review offers overview recent advancements in field conversion, hydrogen artificial photosynthesis, solar cells, fast‐charging batteries, devices based on reversible alkyne‐to‐alkene GDY.

Language: Английский

Citations

0
Assessing the effect of excess PbI2 on the photovoltaic performance of CsPbI3 all-inorganic perovskite solar cells DOI
Liu Zhang, Wenchuan Wang,

Yunxiao Wei

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112548 - 112548

Published: April 1, 2025

Language: Английский

Citations

0
Synergistic effect of DMAI degradation inhibition and perfluorinated passivation for high performance inorganic perovskite photovoltaics DOI
Hui Lü, Jiaqi Wang,

Yunhui Han

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163282 - 163282

Published: May 1, 2025

Language: Английский

Citations

0
Multidimensional Modulation via Tailored Covalent Organic Frameworks Enables Stable Inverted Perovskite Solar Cells with 26.21% Efficiency DOI

Tianzhou Yin,

Zimin Zhang,

Hualin Wu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

Abstract Despite the remarkable advancements in inverted perovskite solar cells, their commercialization remains hindered by critical bottlenecks efficiency and stability stemming from inadequate crystallization unfavorable interfacial states. Herein, for first time, a judiciously designed hydrazine‐linked covalent organic framework (COF) with long alkane phosphate branch chains, named 12‐SD‐COF, is synthesized integrated into precursor to achieve multidimensional regulation of crystallization, defect states, charge separation synergistically. It found that 12‐SD‐COF featuring periodic pores, large planar structure, abundant binding groups extruded solution onto buried interface, surface, grain boundaries, facilitating oriented while eliminating defects perovskites, thereby yielding high‐quality crystals suppressed non‐radiative recombination. Simultaneously, synergistically facilitated p‐type doping‐optimized energy level alignment induced intramolecular electric field, ultimately achieving an exceptional power conversion (PCE) 26.21%, highest yet reported COF‐modified. Impressively, non‐encapsulated resultant device delivers greatly improved stabilities, maintaining over 92% initial PCE after being aged under 85 °C continuous heating stress 800 h, 1000 h 50±3% relative humidity air, 1200 1‐sun illumination, respectively.

Language: Английский

Citations

0