Self‐Assembled Molecule‐Assisted Simplified Processing of High‐Performance Solar Cells and Light‐Emitting Diodes DOI

Xueqing Chang,

Guo Yang,

Ying Tan

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(11)

Published: May 26, 2024

State‐of‐the‐art, high‐performance solar cells and light‐emitting diodes normally rely on tedious layer‐by‐layer sequential deposition of carrier transport layer light‐absorbing/emitting layers, which is not cost‐effective. Several recent exciting works have demonstrated surprising breakthroughs in terms simplified processing these optoelectronic devices. Upon the incorporation carbazole phosphonic acid molecules their derivatives into precursor ink beforehand, charge‐selective contact could spontaneously self‐assemble at buried interface between conducting substrate photoactive layer, results construction simplified‐structured devices that yield comparable performances to conventionally fabricated with full architectures. Herein, groundbreaking advancement via a convenient codeposition technique summarized, particular emphasis elucidating chemical mechanism self‐assembly mode highlighting unique advantages this strategy crystallization regulation, targeted defect passivation, dynamics modulation, comprehensive device performance improvement. Finally, associated challenges are critically discussed future research directions insightfully proposed, can revolutionize pathway toward constructing highly efficient cost‐effective manner setting forward commercialization.

Language: Английский

Stable Surface Contact with Tailored Alkylamine Pyridine Derivatives for High‐Performance Inverted Perovskite Solar Cells DOI Open Access

Sanwan Liu,

Zhenxing Sun, X. Lei

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 16, 2024

Abstract Formamidinium‐cesium lead triiodide (FA 1‐x Cs x PbI 3 ) perovskite holds great promise for solar cells (PSCs) with both high efficiency and stability. However, the defective surfaces induced by defects residual tensile strain largely limit photovoltaic performance of corresponding devices. Here, passivation capability alkylamine‐modified pyridine derivatives surface FA is systematically studied. Among studied passivators, 3‐(2‐aminoethyl)pyridine (3‐PyEA) suitable size demonstrated to be most effective in reducing iodine impurities (V I 2 through its strong coordination N . Additionally, tail amino group (─NH from 3‐PyEA can react + cations reduce roughness films, reaction products also passivate vacancies ), further strengthen their binding interaction surfaces. These merits suppressed nonradiative recombination loss, release stress a favorable energy‐level alignment at perovskite/[6,6]‐phenyl‐C 61 ‐butyric acid methyl ester interface. Consequently, resulting inverted PSCs obtain an impressive power conversion (PCE) 25.65% (certified 25.45%, certified steady‐state 25.06%), along retaining 96.5% initial PCE after 1800 h 1‐sun operation 55 °C air.

Language: Английский

Citations

8
Improving Buried Interface Contact by Bidentate Anchoring for Inverted Perovskite Solar Cells DOI

X.H. Chen,

Yongchun Ye,

Shi‐Chi Feng

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 16, 2024

Abstract Nickel oxide (NiO x ) is a promising hole transport layer (HTL) to fabricate efficient and large‐scale inverted perovskite solar cells (PSCs) due its low cost superior chemical stability. However, PSCs based on NiO are still lagging behind that of other HTL because the poor quality buried interface contact. Herein, bidentate ligand, 4,6‐bis (diphenylphosphino) phenoxazine (2DPP), used regulate surface interface. The diphosphine Lewis base in 2DPP molecule can coordinate both with lead ions at /perovskite interface, leading high‐quality films minimized defects. It found 2DPP‐modified exhibit double advantages being fast charge extraction reduced nonradiative recombination, which combination multiple factors including favorable energetic alignment, improved contact strong binding between /2DPP perovskite. optimal PSC modification yields champion power conversion efficiency (PCE) 21.9%. unencapsulated maintains above 75% initial PCE air relative humidity (RH) 30–40% for 1000 h.

Language: Английский

Citations

7
Strain engineering improves the photovoltaic performance of carbon-based hole-transport-material free CsPbIBr2 perovskite solar cells DOI
Wei He, Xingxing Duan, Qunwei Tang

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(37), P. 4954 - 4957

Published: Jan. 1, 2024

Alkylamines improve the efficiency and stability of carbon-based hole-transport-material free CsPbIBr 2 perovskite solar cells through strain engineering.

Language: Английский

Citations

6
Gas Molecule Assisted All‐Inorganic Dual‐Interface Passivation Strategy for High‐Performance Perovskite Solar Cells DOI Creative Commons
F. R. Zeng, Lin Xu,

Jiahe Xing

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 4, 2024

The trap states at both the upper and bottom interfaces of perovskite layers significantly impact non-radiative carrier recombination. widely used solvent-based passivation methods result in disordered distribution surface components, posing challenges for commercial application large-area solar cells (PSCs). To address this issue, a novel NH

Language: Английский

Citations

5
Cyclen molecule manipulation for efficient and stable perovskite solar cells DOI
Yuyao Yang, Yuan Li, Qing Chang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 13212 - 13218

Published: Jan. 1, 2024

Cyclen regulated the perovskite film growth and healed Pb-relative defects. The corresponding solar cells achieved an impressive efficiency of 24.71%, modules in 36 cm 2 total-area gained a high 20.08% via blade coating.

Language: Английский

Citations

4
Robust 3D/2D Heterojunction with Oriented Dion-Jacobson Layer for Improved Ion Migration Suppression in Large-Area Inverted Perovskite Solar Cells DOI

Beilin Ouyang,

Congcong Tian,

Anxin Sun

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111024 - 111024

Published: April 1, 2025

Language: Английский

Citations

0
Enhanced Buried Selective Contacts via Dual‐Sided Passivation for Efficient and Stable Perovskite Solar Cells DOI
Zhiyu Wang, Rui Su, Qianru Zhang

et al.

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

Published: April 27, 2025

Abstract Self‐assembled monolayers (SAMs) play a crucial role in high‐performance perovskite solar cells (PSCs). However, the incompatibility between nonpolar head groups of SAMs and polar precursor solutions leads to SAM assembly defects wettability issues, consequently impacting device efficiency. Moreover, uneven distribution hydroxyl on surface conventional transparent conductive oxide substrates is detrimental onto them. Here, dual‐sided passivation strategy reported based co‐adsorbed approach, which (4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl)phosphonic acid (Me‐4PACz) doped with phaclofen (PLF) self‐assembly NiO x substrate. By compensating for unanchored sites Me‐4PACz, phosphonic PLF adsorb surface, enabling more uniform ordered anchoring as well improved deposition. This optimized morphology enhanced interface contact. Additionally, amino passivate at buried interface, suppressing non‐radiative recombination during charge transport. The champion PSC fabricated using this achieves high fill factor 84.92%, power conversion efficiency 24.04%, excellent long‐term stability under ISOS‐D‐1I ISOS‐T‐1I protocols, maintaining over 85% initial after >1000 h thermal cycling conditions.

Language: Английский

Citations

0
Gradient Doping for Stress‐Relief in Vapor‐deposited Perovskite Film to Achieve High‐performance p‐i‐n Perovskite Solar Cells with a 23% Efficiency DOI

Yujian Zheng,

Zhenye Zhan,

Nana Pang

et al.

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

Published: May 3, 2025

Abstract Vapor‐deposited p‐i‐n perovskite solar cells (PSCs) present key advantages such as low cost, excellent stability, low‐temperature fabrication, and compatibility with tandem architectures, positioning them strong contenders for industrial‐scale applications. However, their power conversion efficiency (PCE) remains lower than that of n‐i‐p architectures. Herein, a gradient doping strategy to alleviate the stress in vapor‐deposited films is introduced. Gradient chloride precursor film effectively slows crystallization rate at bottom layer, facilitating uniform mitigating residual strain. This method yielded high‐quality films, achieving PCE 23.0% PSCs 21.43% entirely PSCs. Additionally, devices demonstrates outstanding showing negligible performance degradation over 1600 h nitrogen storage maintaining 87.3% initial after 500 maximum point tracking under 1‐sun equivalent illumination 70% relative humidity. The provides valuable insights advancing large‐area perovskite‐textured silicon cells.

Language: Английский

Citations

0
Heat‐Triggered Dynamic Self‐Healing Framework for Variable‐Temperature Stable Perovskite Solar Cells DOI
Ying Tang,

Zuhong Zhang,

Guixiang Li

et al.

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

Published: May 9, 2025

Abstract Metal halide perovskite solar cells (PSCs) are promising as the next‐generation photovoltaic technology. However, inferior stability under various temperatures remains a significant obstacle to commercialization. Here, heat‐triggered dynamic self‐healing framework (HDSF) is implemented repair defects at grain boundaries caused by thermal variability, enhancing PSCs' temperature stability. HDSF, distributed and surface of film, stabilizes lattice releases crystal stress through exchange reaction sulfide bonds. The resultant PSCs achieved power‐conversion efficiency (PCE) 26.32% (certified 25.84%) with elevated stability, retaining 88.7% initial PCE after 1000 h 85 °C. In variable cycling test (between −40 80 °C), HDSF‐treated device retained 87.6% its °C 92.6% 160 cycles. This strategy could significantly enhance reliability in application scenarios.

Language: Английский

Citations

0
Building a Charge Transfer Bridge between g-C3N4 and Perovskite with Molecular Engineering to Achieve Efficient Perovskite Solar Cells DOI
Yingjie Wang,

Jinhang Zou,

Congyu Zhao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(11), P. 13815 - 13827

Published: March 5, 2024

Effective defect passivation and efficient charge transfer within polycrystalline perovskite grains corresponding boundaries are necessary to achieve highly solar cells (PSCs). Herein, focusing on the boundary location of g-C3N4 during crystallization modulation perovskite, molecular engineering 4-carboxyl-3-fluorophenylboronic acid (BF) was designed obtain a novel additive named BFCN. With help strong bonding ability BF with both favorable intramolecular BFCN, not only has crystal quality films been improved due effective defects passivation, but also greatly accelerated formation additional channels grain boundaries. As result, champion BFCN-based PSCs highest photoelectric conversion efficiency (PCE) 23.71% good stability.

Language: Английский

Citations

3