Ambient-aging process enables enhanced efficiency for wide-bandgap perovskite solar cells

Yang, Yang; Liu, Lu; Li, Jianxun; Zhao, Shuai; Chang, Zhen; Wang, Le; Liu, Shengzhong

doi:10.1016/j.nanoen.2023.108288

Cited by 12 publications

(17 citation statements)

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“…Compared with the control device, the A&P device has a larger R rec due to larger radius in the low‐frequency range, indicating that the carrier recombination rate at the interface is reduced, leading to the increase of the open voltage. [ 39,40 ]…”

Section: Resultsmentioning

confidence: 99%

“…Compared with the control device, the A&P device has a larger R rec due to larger radius in the low-frequency range, indicating that the carrier recombination rate at the interface is reduced, leading to the increase of the open voltage. [39,40] We further used the Mott-Schottky (M-S) method to characterize the built-in potential (V bi ) of the device. The V bi and carrier concentration can be derived from the following formula.…”

Section: Resultsmentioning

confidence: 99%

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Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Gan,

Hao,

et al. 2023

Solar RRL

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Wide‐bandgap (WBG) perovskite solar cells (PSCs) play a crucial role in tandem devices. However, the severe non‐radiative recombination that occurs at interface between perovskite and electron transport layers (ETL) leads to excessive open‐circuit voltage (VOC) loss, which hinders the further improvement of the photovoltaic conversion efficiency (PCE). To mitigate the VOC loss in wide‐bandgap perovskite solar cells, we can reduce the defects exist in grains and grain boundaries as well as optimize the energy level alignment between perovskite layer and ETL, so as to improve the carrier collection efficiency. In this paper, potassium thiocyanate (KSCN) is introduced as an additive and 2‐thiophenethylammonium bromide (TEABr) is used to passivate perovskite/C60 interface. The synergistic treatment reduces the defect density and prolongs the carrier lifetime, implying that the non‐radiative recombination is effectively suppressed. Meanwhile, the energy level alignment of the perovskite and C60 is optimized, leading to the improvement of VOC. Finally, WBG perovskite solar cells with a band gap of 1.68 eV achieve a VOC of 1.22 V (with a VOC loss of 0.46 V) and a PCE of 22.02%.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Gan,

Hao,

et al. 2023

Solar RRL

View full text Add to dashboard Cite

show abstract

Section: Samsmentioning

confidence: 99%

Self‐assembled monolayers (SAMs) in inverted perovskite solar cells and their tandem photovoltaics application

Yi,

Li,

Xiong

et al. 2024

Interdisciplinary Materials

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Self‐assembled monolayers (SAMs) employed in inverted perovskite solar cells (PSCs) have achieved groundbreaking progress in device efficiency and stability for both single‐junction and tandem configurations, owing to their distinctive and versatile ability to manipulate chemical and physical interface properties. In this regard, we present a comprehensive review of recent research advancements concerning SAMs in inverted perovskite single‐junction and tandem solar cells, where the prevailing challenges and future development prospects in the applications of SAMs are emphasized. We thoroughly examine the mechanistic roles of diverse SAMs in energy‐level regulation, interface modification, defect passivation, and charge transportation. This is achieved by understanding how interfacial molecular interactions can be finely tuned to mitigate charge recombination losses in inverted PSCs. Through this comprehensive review, we aim to provide valuable insights and references for further investigation and utilization of SAMs in inverted perovskite single‐junction and tandem solar cells.

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“…23,24 In particular, Ni/Co-based MOFs display outstanding energy storage capability due to rich redox reactions and electrolyte transport channels, which enable a fast charge transfer rate. 25,26 However, relatively poor electrical conductivity and chemical stability have retarded the wide application of pristine MOFs in the energy storage eld. 27 The rational design and controllable fabrication of MOFs are an effective means for the overall improvement of conductivity, for example, (a) integrating MOFs with conductive materials like carbonaceous coatings, quantum dots, graphene, organic polymers 28 and (b) doping ternary metal cations to construct a heterostructure.…”

Section: Introductionmentioning

confidence: 99%

Ni₃S₂/Co₃S₄ with controlled surface electron arrangement for high-performance aqueous energy storage

Liang,

Li,

Kang

et al. 2024

J. Mater. Chem. A

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Ambient-aging process enables enhanced efficiency for wide-bandgap perovskite solar cells

Cited by 12 publications

References 50 publications

Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Self‐assembled monolayers (SAMs) in inverted perovskite solar cells and their tandem photovoltaics application

Ni₃S₂/Co₃S₄ with controlled surface electron arrangement for high-performance aqueous energy storage

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Ambient-aging process enables enhanced efficiency for wide-bandgap perovskite solar cells

Cited by 12 publications

References 50 publications

Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Additive Combining Passivator for Inverted Wide‐Bandgap Perovskite Solar Cells with 22% Efficiency and Reduced Voltage Loss

Self‐assembled monolayers (SAMs) in inverted perovskite solar cells and their tandem photovoltaics application

Ni3S2/Co3S4 with controlled surface electron arrangement for high-performance aqueous energy storage

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Ni₃S₂/Co₃S₄ with controlled surface electron arrangement for high-performance aqueous energy storage