Enhancing Stability and Photovoltaic Performance of Perovskite Solar Cells via 5‐Ammonium Acid Additive DOI

Fanwen Meng,

Bo Song, Tingting Dai

et al.

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

Published: March 30, 2024

Abstract The quality of perovskite films plays a fundamental role in determining the performance solar cells (PSCs). It is widely recognized that achieving high crystalline and minimizing defect density are essential. In this study, utilization multifunctional additive 5‐ammonium acid (5‐AVA) to improve morphology proposed. ‐NH 2 ‐COOH groups 5‐AVA enable effective coordination with Pb ions organic perovskite, resulting suppression formation reduction non‐radiative recombination losses. Furthermore, addition facilitates more favorable energy level alignment, thereby enhancing transfer carriers between layer transport layers. Consequently, process contributes improvement open circuit voltage ( V OC ) PSCs. Attributing 5‐AVA, optimized PSCs achieve significantly enhanced maximum photoelectric conversion efficiency (PCE) 24.74% excellent long‐term stability. This work presents straightforward approach enhance stability

Language: Английский

Orientated crystallization of FA-based perovskite via hydrogen-bonded polymer network for efficient and stable solar cells DOI Creative Commons
Mubai Li,

Riming Sun,

Jingxi Chang

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 2, 2023

Incorporating mixed ion is a frequently used strategy to stabilize black-phase formamidinum lead iodide perovskite for high-efficiency solar cells. However, these devices commonly suffer from photoinduced phase segregation and humidity instability. Herein, we find that the underlying reason halide perovskites generally fail grow into homogenous high-crystalline film, due multiple pathways of crystal nucleation originating various intermediate phases in film-forming process. Therefore, design multifunctional fluorinated additive, which restrains complicated promotes orientated crystallization α-phase perovskite. Furthermore, additives in-situ polymerize during film formation form hydrogen-bonded network α-phase. Remarkably, polymerized endow strongly hydrophobic effect bare against liquid water 5 min. The unencapsulated achieve 24.10% efficiency maintain >95% initial 1000 h under continuous sunlight soaking 2000 at air ambient ~50% humid, respectively.

Language: Английский

Citations

213
Tailoring passivators for highly efficient and stable perovskite solar cells DOI
Hong Zhang, Lukas Pfeifer, Shaik M. Zakeeruddin

et al.

Nature Reviews Chemistry, Journal Year: 2023, Volume and Issue: 7(9), P. 632 - 652

Published: July 18, 2023

Language: Английский

Citations

206
Suppression of phase segregation in wide-bandgap perovskites with thiocyanate ions for perovskite/organic tandems with 25.06% efficiency DOI

Zhichao Zhang,

Weijie Chen, Xingxing Jiang

et al.

Nature Energy, Journal Year: 2024, Volume and Issue: 9(5), P. 592 - 601

Published: March 29, 2024

Language: Английский

Citations

82
Highly stabilized and efficient thermoelectric copper selenide DOI
Haihua Hu,

Yiwei Ju,

Jincheng Yu

et al.

Nature Materials, Journal Year: 2024, Volume and Issue: 23(4), P. 527 - 534

Published: March 7, 2024

Language: Английский

Citations

76
A multiscale ion diffusion framework sheds light on the diffusion–stability–hysteresis nexus in metal halide perovskites DOI
Masoud Ghasemi, Boyu Guo, Kasra Darabi

et al.

Nature Materials, Journal Year: 2023, Volume and Issue: 22(3), P. 329 - 337

Published: Feb. 27, 2023

Language: Английский

Citations

72
Inverted perovskite solar cells with over 2,000 h operational stability at 85 °C using fixed charge passivation DOI
Yuanhang Yang,

Siyang Cheng,

Xueliang Zhu

et al.

Nature Energy, Journal Year: 2023, Volume and Issue: 9(1), P. 37 - 46

Published: Oct. 19, 2023

Language: Английский

Citations

70
Inhibition of Ion Migration for Highly Efficient and Stable Perovskite Solar Cells DOI Open Access
Yang Zhong, Jia Yang, Xueying Wang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(52)

Published: April 17, 2023

Abstract In recent years, organic‐inorganic halide perovskites are now emerging as the most attractive alternatives for next‐generation photovoltaic devices, due to their excellent optoelectronic characteristics and low manufacturing cost. However, resultant perovskite solar cells (PVSCs) intrinsically unstable owing ion migration, which severely impedes performance enhancement, even with device encapsulation. There is no doubt that investigation of migration summarization advances in inhibition strategies necessary develop “state‐of‐the‐art” PVSCs high intrinsic stability accelerated commercialization. This review systematically elaborates on generation fundamental mechanisms PVSCs, impact hysteresis, phase segregation, operational stability, characterizations PVSCs. Then, many related works inhibiting toward highly efficient stable summarized. Finally, perspectives current obstacles prospective boost meet all requirements commercialization success

Language: Английский

Citations

62
Mapping the pathways of photo-induced ion migration in organic-inorganic hybrid halide perovskites DOI Creative Commons
Taeyong Kim, So Yeon Park, Vasudevan Iyer

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: April 3, 2023

Organic-inorganic hybrid perovskites exhibiting exceptional photovoltaic and optoelectronic properties are of fundamental practical interest, owing to their tunability low manufacturing cost. For applications, however, challenges such as material instability the photocurrent hysteresis occurring in perovskite solar cells under light exposure need be understood addressed. While extensive investigations have suggested that ion migration is a plausible origin these detrimental effects, detailed understanding pathways remains elusive. Here, we report characterization photo-induced using situ laser illumination inside scanning electron microscope, coupled with secondary imaging, energy-dispersive X-ray spectroscopy cathodoluminescence varying primary energies. Using methylammonium lead iodide formamidinium model systems, observed long-range halide ions over hundreds micrometers elucidated transport various both near surface bulk samples, including surprising finding vertical ions. Our study provides insights into processes can aid design processing future applications.

Language: Английский

Citations

54
Atomic-scale imaging of ytterbium ions in lead halide perovskites DOI Creative Commons
Wen Feng Xu,

J. Liu,

Bin Dong

et al.

Science Advances, Journal Year: 2023, Volume and Issue: 9(35)

Published: Sept. 1, 2023

Lanthanide-doped lead halide perovskites have demonstrated great potential for photoelectric applications. However, there is a long-standing controversy about the existence of lanthanide ions, e.g., whether doping Ln 3+ successful or not; substituting sites in are unclear. We directly identify doped Yb CsPbCl 3 by using state-of-the-art transmission electron microscopy and three-dimensional atom probe tomography at atomic scale. Different from previous assumptions and/or results, we evidence that simultaneously replace Pb 2+ occupy lattice interstitial sites. Furthermore, observe cluster phenomenon single crystal near Density functional theory modeling further confirms explains mechanisms our findings. Our findings thus provide an atomic-level understanding mechanism will stimulate thinking effect on performance perovskites.

Language: Английский

Citations

44
Toward stabilization of formamidinium lead iodide perovskites by defect control and composition engineering DOI Creative Commons
Yuhang Liang, Feng Li, Xiangyuan Cui

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 24, 2024

Abstract Phase instability poses a serious challenge to the commercialization of formamidinium lead iodide (FAPbI 3 )-based solar cells and optoelectronic devices. Here, we combine density functional theory machine learning molecular dynamics simulations, investigate mechanism driving undesired α-δ phase transition FAPbI . Prevalent iodine vacancies interstitials can significantly expedite structural kinetics by inducing robust covalency during states. Extrinsically, detrimental roles atmospheric moisture oxygen in degrading perovskite are also rationalized. Significantly, discover compositional design principles categorizing that A-site engineering primarily governs thermodynamics, whereas B-site doping effectively manipulate , highlighting lanthanide ions as promising substitutes. A-B mixed emerges an efficient strategy synergistically stabilize α-FAPbI experimentally demonstrated substantially higher initial characteristics enhanced stability Cs-Eu doped compared its Cs-doped counterpart. This study provides scientific guidance for optimization long-term stable -based other devices through defect control synergetic composition engineering.

Language: Английский

Citations

33