One-step P2 scribing of organometal halide perovskite solar cells by picosecond laser of visible wavelength

Wang, Zhen; Kuk, Seungkuk; Kang, Byungsoo; Lee, Phillip; Jeong, Jeung‐hyun; Hwang, David J.

doi:10.1016/j.apsusc.2019.144408

Cited by 10 publications

(14 citation statements)

References 48 publications

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“…Recently, intense research activity has been devoted to the investigation and optimization of laser processing for perovskite solar modules on rigid glass substrate, with considerable progress achieved since the first pioneering work by Matteocci et al 24 and Wang et al 25 evaluated the scribing performance of a picosecond laser of 532 nm wavelength for mesoscopic perovskite modules based on a compact-TiO 2 ETL and fluorine-doped tin oxide (FTO) as a bottom contact. They elucidated the predominant mechanisms of the scribing process, such as layer-by-layer ablation and lift-off mechanism, depending on the laser illumination direction.…”

Section: Introductionmentioning

confidence: 99%

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates

Taheri

Rossi

Lucarelli

et al. 2021

ACS Appl. Energy Mater.

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Flexible perovskite solar cells (FPSCs) are prime candidates for applications requiring a highly efficient, low-cost, lightweight, thin, and even foldable power source. Despite record efficiencies of lab-scale flexible devices (19.5% on a 0.1 cm 2 area), scalability represents a critical factor toward commercialization of FPSCs. Large-area automized deposition techniques and efficient laser scribing procedures are required to enable a high-throughput production of flexible perovskite modules (FPSMs), with the latter being much more challenging compared to glass substrates. In this work, we introduce the combined concept of laser scribing optimization and automatized spray-coating of SnO 2 layers. Based on a systematic variation of the incident laser power and a comprehensive morphological and electrical analysis of laser-based cell interconnections, optimal scribing parameters are identified. Furthermore, spray-coating is used to deposit uniform compact SnO 2 films on large-area (>120 cm 2 ) plastic substrates. FPSCs with spray-coated SnO 2 show comparable performance as spin-coated cells, delivering up to 15.3% efficiency on small areas under 1 sun illumination. When upscaling to large areas, FPSMs deliver 12% power conversion efficiency (PCE) and negligible hysteresis on 16.8 cm 2 and 11.7% PCE on a 21.8 cm 2 active area. Our perovskite devices preserved 78% efficiency when the active area increased from 0.1 to 16.8 cm 2 , demonstrating that our combined approach is an effective strategy for large-area manufacturing of perovskite devices on flexible substrates.

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Section: Introductionmentioning

confidence: 99%

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates

Taheri

Rossi

Lucarelli

et al. 2021

ACS Appl. Energy Mater.

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“…The low absorption selectivity between c-TiO 2 and FTO for most laser wavelengths make this challenging. [53] The use of solution grown, vertical TiO 2 nanorod based ETLs to improve the stability of CH 3 NH 3 PbI 3−x Cl x PSCs was reported by Fakharuddin et al [28] Mini-modules realized with laser patterned TiO 2 nanorods with performances of 10.5% were achieved. A significant improvement in ambient stability after 2500 h was reported when comparing the nanorod ETLs with TiO 2 nanoparticles and on a compact TiO 2 layer.…”

Section: The P2 Scribementioning

confidence: 99%

“…The low absorption selectivity between c‐TiO 2 and FTO for most laser wavelengths make this challenging. [ 53 ]…”

Section: The P2 Scribementioning

confidence: 99%

Laser Processing Methods for Perovskite Solar Cells and Modules

Brooks

Nazeeruddin

2021

Advanced Energy Materials

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The perovskite photovoltaic technology is now transitioning from basic research to the pre‐industrialization phase. In order to achieve reliable and high‐performance commercial perovskite solar modules, high throughput manufacturing technologies must now be adapted to the specific constraints and requirements imposed by the perovskite solar cells unique new chemistries, film deposition methodologies, and encapsulation requirements. Laser technologies will play an important role in the industrialization of these devices, both to achieve high active surface area modules and for the deposition and/or treatment of the critical layers. Industrial lasers will be essential to achieve active areas greater than 95% of the total area to retain the benefits of the very high performances reported for <1 cm2 laboratory cells. The speed of laser processing for the preparation of interconnects is unrivalled by comparison to other structuring methods. Recent reports of the use of lasers in upscaling perovskite solar cells are presented and analyzed here.

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“…Furthermore, P2 scribing can also be achieved by illuminating the substrate side—perovskite is preferentially heated, causing a micro‐explosion assisted lift‐off mechanism. Compared with the film side illumination method, this method results in a significantly reduced scribing threshold, that is narrow dead zone width but also large portion of electrical contact width 177 …”

Section: Upscalingmentioning

confidence: 99%

“…Compared with the film side illumination method, this method results in a significantly reduced scribing threshold, that is narrow dead zone width but also large portion of electrical contact width. 177 Back-contact is then deposited, filling the P2 path which connects the sub-cell to the substrate of the next sub-cell. The contact between the BC material and the active layers at the P2 path may cause undesired recombination or metal BC diffusion into the active layers.…”

Section: Module Fabricationmentioning

confidence: 99%

Selection of the ultimate perovskite solar cell materials and fabrication processes towards its industrialization: A review

Teixeira

Castro

Andrade

et al. 2022

Energy Science & Engineering

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Hybrid organic-inorganic perovskite materials have become one of the most studied classes of light-harvesting materials due to their exceptional properties such as high light absorption, long carrier diffusion lengths, bandgap tuning and defect tolerance. Since 2009 that the scientific community has been working on improving the power conversion efficiency (PCE) of perovskite solar cell devices, reaching now an impressive value of 25.5%. Moreover, efficiencies over 18% are often reported by several authors. Since the efficiency goal is almost fulfilled, the scientific community is currently addressing five challenges, with the ultimate objective to make this technology competitive and turn it commercial; these challenges are cost, stability, upscaling, safety and environmental impact.Given the astonishing progresses reached during the past decade and the numerous research groups working to the same goal, it is a matter of time until commercial perovskite solar devices become a reality. In this review work, the most recent achievements regarding this purpose are put together and compared, so as to suggest the most suitable perovskite solar fabrication processes and materials to produce commercial devices.

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One-step P2 scribing of organometal halide perovskite solar cells by picosecond laser of visible wavelength

Cited by 10 publications

References 48 publications

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates

Laser Processing Methods for Perovskite Solar Cells and Modules

Selection of the ultimate perovskite solar cell materials and fabrication processes towards its industrialization: A review

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One-step P2 scribing of organometal halide perovskite solar cells by picosecond laser of visible wavelength

Cited by 10 publications

References 48 publications

Laser-Scribing Optimization for Sprayed SnO2-Based Perovskite Solar Modules on Flexible Plastic Substrates

Laser-Scribing Optimization for Sprayed SnO2-Based Perovskite Solar Modules on Flexible Plastic Substrates

Laser Processing Methods for Perovskite Solar Cells and Modules

Selection of the ultimate perovskite solar cell materials and fabrication processes towards its industrialization: A review

Contact Info

Product

Resources

About

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates

Laser-Scribing Optimization for Sprayed SnO₂-Based Perovskite Solar Modules on Flexible Plastic Substrates