Improving interface quality for 1-cm2 all-perovskite tandem solar cells

Nature, Journal Year: 2023, Volume and Issue: 618(7963), P. 80 - 86

Published: March 29, 2023

Language: Английский

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A universal close-space annealing strategy towards high-quality perovskite absorbers enabling efficient all-perovskite tandem solar cells

Nature Energy, Journal Year: 2022, Volume and Issue: 7(8), P. 744 - 753

Published: July 21, 2022

Language: Английский

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A donor–acceptor-type hole-selective contact reducing non-radiative recombination losses in both subcells towards efficient all-perovskite tandems

Nature Energy, Journal Year: 2023, Volume and Issue: 8(7), P. 714 - 724

Published: June 12, 2023

Language: Английский

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Aspartate all-in-one doping strategy enables efficient all-perovskite tandems

Nature, Journal Year: 2023, Volume and Issue: 624(7990), P. 69 - 73

Published: Nov. 8, 2023

Language: Английский

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Recent Advances in Wide-Bandgap Organic–Inorganic Halide Perovskite Solar Cells and Tandem Application

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 21, 2023

Perovskite-based tandem solar cells have attracted increasing interest because of its great potential to surpass the Shockley-Queisser limit set for single-junction cells. In architectures, wide-bandgap (WBG) perovskites act as front absorber offer higher open-circuit voltage (V

Language: Английский

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Challenges and Perspectives toward Future Wide‐Bandgap Mixed‐Halide Perovskite Photovoltaics

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(13)

Published: Feb. 15, 2023

Abstract Wide‐bandgap (WBG) perovskite solar cells (PSCs) are acknowledged as promising candidates for multijunction tandem and building photovoltaics, which attract broad research interest in related communities. However, the performance of WBG PSCs based on mixed‐halide perovskites still lags far behind their pure‐iodide counterparts because complex compositional evolution, huge photovoltage deficits, intrinsic spectral losses. Here, by comprehensively understanding representative PSCs, main “WBG drawbacks” from device point view discussed in‐depth three critical issues growth high‐quality proposed. The prospects toward future advancements commercialization also presented to guide coming hot spots.

Language: Английский

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Grain Regrowth and Bifacial Passivation for High‐Efficiency Wide‐Bandgap Perovskite Solar Cells

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(2)

Published: Nov. 27, 2022

Abstract The wide‐bandgap perovskite solar cell is a crucial part of perovskite/silicon tandem cells, which offer an avenue for surpassing the power conversion efficiency (PCE) limit single‐junction silicon cells. However, actual such cells today diminished by nonradiative recombination losses in subcells. Here, this work reports grain regrowth and bifacial passivation (GRBP) strategy to reduce at boundaries perovskite/charge transport layer interfaces simultaneously. This achieved posttreatment films with mixture methylammonium thiocyanate (MASCN) phenethylammonium iodide (PEAI). MASCN induces grains simultaneously facilitates penetration PEAI into hole‐transport‐layer (HTL)/perovskite bottom interface. Thereby, bulk interface are reduced open‐circuit voltage considerably increased. PCEs 21.9% 19.9% 1.65‐eV bandgap opaque semitransparent respectively, obtained. encapsulated retain their initial following 500 h operation under one‐sun illumination ambient conditions. 4‐terminal (4‐T) fabricated impressive 29.8% 28.5% 0.049 cm 2 1 devices, respectively.

Language: Английский

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Improved Carrier Management via a Multifunctional Modifier for High‐Quality Low‐Bandgap Sn–Pb Perovskites and Efficient All‐Perovskite Tandem Solar Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(22)

Published: March 12, 2023

All-perovskite tandem solar cells (TSCs) hold great promise in terms of ultrahigh efficiency, low manufacturing cost, and flexibility, stepping forward to the next-generation photovoltaics. However, their further development is hampered by relatively performance low-bandgap (LBG) tin (Sn)-lead (Pb) perovskite (PSCs). Improving carrier management, including suppressing trap-assisted non-radiative recombination promoting transfer, significance enhance Sn-Pb PSCs. Herein, a management strategy reported for using cysteine hydrochloride (CysHCl) simultaneously as bulky passivator surface anchoring agent perovskite. CysHCl processing effectively reduces trap density suppresses recombination, enabling growth high-quality with greatly improved diffusion length >8 µm. Furthermore, electron transfer at perovskite/C60 interface accelerated due formation dipoles favorable energy band bending. As result, these advances enable demonstration champion efficiency 22.15% CysHCl-processed LBG PSCs remarkable enhancement both open-circuit voltage fill factor. When paired wide-bandgap (WBG) subcell, certified 25.7%-efficient all-perovskite monolithic device demonstrated.

Language: Английский

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Optimizing Crystallization in Wide‐Bandgap Mixed Halide Perovskites for High‐Efficiency Solar Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: Sept. 7, 2023

Wide-bandgap (WBG) perovskites have attracted considerable attention due to their adjustable bandgap properties, making them ideal candidates for top subcells in tandem solar cells (TSCs). However, WBG often face challenges such as inhomogeneous crystallization and severe nonradiative recombination loss, leading high open-circuit voltage (V

Language: Английский

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Novel low-carbon energy solutions for powering emerging wearables, smart textiles, and medical devices

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(12), P. 4928 - 4981

Published: Jan. 1, 2022

Low CO 2 emitting energy extraction techniques and their application in healthcare, textile smart wearables.

Language: Английский

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