Nanoimprint Lithography as a Route to Nanoscale Back-Contact Perovskite Solar Cells

Article Chemistry, Physical

Single-junction organic solar cells with over 19% efficiency enabled by a refined double-fibril network morphology

Lei Zhu et al.

Summary: Morphological control of donor and acceptor domains is crucial for efficient organic photovoltaics, and this study demonstrates a double-fibril network strategy to achieve a high power conversion efficiency of 19.3%.

NATURE MATERIALS (2022)

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Article Energy & Fuels

Series Resistance Modulation for Large-Area Fully Printable Mesoscopic Perovskite Solar Cells

Daiyu Li et al.

Summary: The study successfully modulated the series resistance (R-S) in fully printable mesoscopic PSCs through optimizing device geometry and improving materials, resulting in a significant increase in power conversion efficiency (PCE). By utilizing measures such as a rectangular device shape, tin busbars, and a hot-pressed highly conductive low-temperature carbon layer on the back electrode, the R-S was effectively reduced and the fill factor (FF) was improved.

SOLAR RRL (2022)

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Article Energy & Fuels

Electrodeposition as a Versatile Preparative Tool for Perovskite Photovoltaics: Aspects of Metallization and Selective Contacts/Active Layer Formation

Diego Di Girolamo et al.

Summary: Perovskite-based photovoltaics is expected to be a central technology in sustainable energy production, with companies investing heavily to develop efficient and stable products. This article analyzes the role of electrodeposition in the development of perovskite PV and its potential advantages and drawbacks. While electrodeposition of selective contacts can enable high-efficiency devices, the electrodeposition of the active layer faces challenges due to the solubility issues of perovskite in electrochemical polar solvents.

SOLAR RRL (2022)

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Article Chemistry, Physical

Back-contact perovskite solar cell fabrication via microsphere lithography

Siqi Deng et al.

Summary: A new low-cost microfabrication technique using microsphere lithography is proposed for the fabrication of back-contact electrodes, addressing the scalability issue of conventional photolithography process. A comprehensive comparison between photolithography and microsphere lithography fabrication techniques shows that microsphere lithography achieves higher efficiency in solar cells.

NANO ENERGY (2022)

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Article Chemistry, Physical

All-Back-Contact Perovskite Solar Cells Using Cracked Film Lithography

Kevin J. Prince et al.

Summary: By utilizing cracked film lithography, an interconnected and defect-tolerant back-contact electrode network is formed, optimizing photocurrent and power conversion efficiency.

ACS APPLIED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Highly efficient perovskite solar cells employing SnO2 electron transporting layer derived from a tin oxalate precursor solution

Nian Cheng et al.

Summary: This study demonstrates that tin oxalate can serve as an alternative tin source for fabricating SnO2 electron transporting layers with fast, clean, and energy-saving characteristics. By optimizing the SnC2O4 concentration, high-quality SnO2 films can be obtained, resulting in improved power conversion efficiency and device stability for perovskite solar cells.

JOURNAL OF POWER SOURCES (2022)

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Article Engineering, Environmental

Batch chemical bath deposition of large-area SnO2 film with mercaptosuccinic acid decoration for homogenized and efficient perovskite solar cells

Jibo Zhang et al.

Summary: A modified double chemical bath deposition (DC) process was used to fabricate large-area tin oxide films for perovskite solar cells, leading to homogenized performance and improved efficiency, stability, and homogeneity of the devices. Introduction of mercaptosuccinic acid at the SnO2/perovskite interface further enhanced the power conversion efficiency, resulting in high efficiency perovskite devices. These findings suggest great potential for large-area and high efficiency perovskite module preparation using this modified CBD route.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Materials Science, Multidisciplinary

Processing and Preparation Method for High-Quality Opto-Electronic Perovskite Film

Zheng Chen et al.

Summary: The key to improving the energy conversion efficiency of perovskite solar cells lies in optimizing the film morphology, which is directly affected by the fabrication technology used. Various fabrication methods have their own advantages and disadvantages, and choosing the appropriate method is crucial for achieving high-efficiency devices. Further optimization of existing fabrication technologies and more research are needed for the commercialization of perovskite solar cells.

FRONTIERS IN MATERIALS (2021)

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Article Nanoscience & Nanotechnology

One-step electrodeposition of CuSCN/CuI nanocomposite and its hole transport-ability in inverted planar perovskite solar cells

Kaliappan Ramachandran et al.

Summary: A CuSCN/CuI nanocomposite was synthesized by single-step electrodeposition, with controlled surface morphology and film thickness. The nanoflower-like CuSCN/CuI morphology exhibited excellent photovoltaic performance in the device.

NANOTECHNOLOGY (2021)

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Review Materials Science, Multidisciplinary

Flexible Perovskite Solar Cells: Progress and Prospects

Xiao Liang et al.

Summary: Flexible perovskite solar cells (FPSCs) have shown great potential in wearable power supply and integration with architectures due to their advantages of high flexibility and light-to-electricity power conversion efficiency. Significant progress has been made in FPSCs through composition engineering and new charge transport materials, with the efficiency now exceeding 20%.

FRONTIERS IN MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Carrier gradients and the role of charge selective contacts in lateral heterojunction all back contact perovskite solar cells

Sean P. Dunfield et al.

Summary: Realizing the full potential of metal halide perovskite material in photovoltaic devices requires a better understanding of the role of selective contacts and key interfaces in the presence of mobile defects. By fabricating lateral heterojunctions with specific back contacts, researchers are able to analyze the impact of carrier concentration gradients on the functionality of the device, using a variety of analytical techniques.

CELL REPORTS PHYSICAL SCIENCE (2021)

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Article Multidisciplinary Sciences