One-step synthesis of low-cost perylenediimide-based cathode interfacial materials for efficient inverted perovskite solar cells

Wu, Tao; Xu, Peng; Wang, Daizhe; Jiang, Xingjian; Guo, Fengyun; Gao, Shiyong; Ge, Ziyi; Zhang, Yong

doi:10.1016/j.cej.2022.140451

Cited by 10 publications

(11 citation statements)

References 55 publications

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“…As shown in Figure 5b, the target PSC exhibits a lower reverse saturation current density than the control device, indicating that carrier generation rate in the dark is lower in the former due to lower trap density. [50] This result is consistent with the suppressed recombination rate in the target PSCs.…”

Section: Photovoltaic Properties Of Dpgabr-treated Pscssupporting

confidence: 85%

Rapid Surface Reconstruction in Air‐Processed Perovskite Solar Cells by Blade Coating

Zhuang,

Liu,

Kang

et al. 2023

Advanced Materials

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Blade coating has been developed to be an essential technique for large‐area fabrication of perovskite solar cells (PSCs). However, effective surface treatment of the perovskite layer, which is a critical step for improving PSC performance, remains challenges during blade coating due to the short interaction time between the modification solution and the perovskite layer, as well as the limited selection of available organic solvents. In this study, a novel modifier N,N‐diphenylguanidine monohydrobromide (DPGABr) dissolved in acetonitrile (ACN) is blade coated on the MA0.7FA0.3PbI3 surface in air to reconstruct the perovskite surface in hundreds of milliseconds. This work finds that the solvent ACN rapidly dissolves organic iodide of the perovskite layer and leads to a PbI2‐rich surface, providing reactive sites for DPGABr to form a thin DPGABr/PbI2 complex layer. This surface reconstruction can effectively passivate defects and induce n‐type doping on the perovskite surface to facilitate electron transfer. The resultant devices show a 15% improvement in average power conversion efficiency. More importantly, the devices with the surface reconstruction show outstanding long‐term stability, with negligible performance degradation even after 1‐year storage in air. This study presents a convenient and effective approach for improving the performance of blade‐coated PSCs prepared in air.

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Section: Photovoltaic Properties Of Dpgabr-treated Pscssupporting

confidence: 85%

Rapid Surface Reconstruction in Air‐Processed Perovskite Solar Cells by Blade Coating

Zhuang,

Liu,

Kang

et al. 2023

Advanced Materials

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“…This study introduces a novel application of an aliphatic amine-functionalized PDI derivative, PDINN, for high-performance THPSCs. PDINN not only upshifts the W F value of the air-stable Cu metal but also acts as a robust barrier against unwanted iodine and metal migration. − This dual functionality enhances the performance of THPSCs, providing a pathway for achieving excellent device efficiency and prolonged stability for practical photovoltaic applications. Furthermore, the use of PDINN facilitates the ability to establish superior interfacial contact with the PC 61 BM electron transport layer and the Cu cathode compared to the more commonly used BCP.…”

Section: Surface and Interfacial Properties Of Cilsmentioning

confidence: 99%

Tin-Based Perovskite Solar Cells Containing a Perylene Diimide Cathode Interlayer with a Copper Top Electrode

Obila,

Ryu,

et al. 2024

ACS Energy Lett.

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Interfacial modulation is crucial for optimizing charge carrier management and thwarting undesired ion-metal diffusion in perovskite photovoltaics. This study highlights a groundbreaking approach, employing semiconducting perylene-diimide (PDINN) as a cathode interlayer (CIL) in an inverted tin halide perovskite solar cell (THPSC). PDINN imparts the THPSCs with a remarkable efficiency rate of 13.05% as well as substantial stability, achieving the best performance among reported THPSCs thus far. The incorporation of PDINN improves the energy level alignment and mitigates the interfacial trap density, with PDINN also serving as a robust diffusion barrier to Cu and I ions due to the strong interactions between it and the PC 61 BM electron transport layer or the Cu cathode. The PDINN CIL introduced in this study is a pioneering application in THPSCs that concurrently boosts efficiency while also ensuring unprecedented stability.

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“…Most of the CIL materials studied require complex multistep synthesis and purification processes, which increase the cost and hinder the large-scale development of IPSCs. 120 Low-temperature solution treatment is a cost-effective way to develop interfacial layers. Feng and his colleagues prepared an a-NbOH colloidal solution by simple hydrothermal-assisted hydrolysis of a niobium chloride aqueous solution at a low temperature of 130 °C.…”

Section: The Interface Engineering Of Electrode/etl Interfacementioning

confidence: 99%

Key Roles of Interfaces in Inverted Metal-Halide Perovskite Solar Cells

Li,

Wang,

et al. 2024

ACS Nano

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Metal-halide perovskite solar cells (PSCs), an emerging technology for transforming solar energy into a clean source of electricity, have reached efficiency levels comparable to those of commercial silicon cells. Compared with other types of PSCs, inverted perovskite solar cells (IPSCs) have shown promise with regard to commercialization due to their facile fabrication and excellent optoelectronic properties. The interlayer interfaces play an important role in the performance of perovskite cells, not only affecting charge transfer and transport, but also acting as a barrier against oxygen and moisture permeation. Herein, we describe and summarize the last three years of studies that summarize the advantages of interface engineering-based advances for the commercialization of IPSCs. This review includes a brief introduction of the structure and working principle of IPSCs, and analyzes how interfaces affect the performance of IPSC devices from the perspective of photovoltaic performance and device lifetime. In addition, a comprehensive summary of various interface engineering approaches to solving these problems and challenges in IPSCs, including the use of interlayers, interface modification, defect passivation, and others, is summarized. Moreover, based upon current developments and breakthroughs, fundamental and engineering perspectives on future commercialization pathways are provided for the innovation and design of next-generation IPSCs.

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One-step synthesis of low-cost perylenediimide-based cathode interfacial materials for efficient inverted perovskite solar cells

Cited by 10 publications

References 55 publications

Rapid Surface Reconstruction in Air‐Processed Perovskite Solar Cells by Blade Coating

Rapid Surface Reconstruction in Air‐Processed Perovskite Solar Cells by Blade Coating

Tin-Based Perovskite Solar Cells Containing a Perylene Diimide Cathode Interlayer with a Copper Top Electrode

Key Roles of Interfaces in Inverted Metal-Halide Perovskite Solar Cells

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