Organic and perovskite solar modules innovated by adhesive top electrode and depth-resolved laser patterning

Spyropoulos, George D.; Quiroz, César Omar Ramírez; Salvador, Michaël; Hou, Yi; Gasparini, Nicola; Schweizer, Peter; Adams, Jens; Kubiš, Peter; Li, Ning; Spiecker, Erdmann; Ameri, Tayebeh; Egelhaaf, Hans‐Joachim; Brabec, Christoph J.

doi:10.1039/c6ee01555g

Cited by 64 publications

(74 citation statements)

References 52 publications

(72 reference statements)

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“…Also a low percentage of perovskite precursor material was wasted (only the 20% of initial amount). Meanwhile, Spyropoulos et al 92 combined an adhesive top electrode and depth-selective laser patterning to fabricate novel two-cell perovskite solar modules. The modules delivered a PCE of 9.75% not so far from 9.80% of small cells, and no-hysteresis.…”

Section: Ink-jet Printing Vacuum/vapor Deposition and Other Large Armentioning

confidence: 99%

Research Update: Large-area deposition, coating, printing, and processing techniques for the upscaling of perovskite solar cell technology

et al. 2016

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To bring perovskite solar cells to the industrial world, performance must be maintained at the photovoltaic module scale. Here we present large-area manufacturing and processing options applicable to large-area cells and modules. Printing and coating techniques, such as blade coating, slot-die coating, spray coating, screen printing, inkjet printing, and gravure printing (as alternatives to spin coating), as well as vacuum or vapor based deposition and laser patterning techniques are being developed for an effective scale-up of the technology. The latter also enables the manufacture of solar modules on flexible substrates, an option beneficial for many applications and for roll-to-roll production.

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Section: Ink-jet Printing Vacuum/vapor Deposition and Other Large Armentioning

confidence: 99%

Research Update: Large-area deposition, coating, printing, and processing techniques for the upscaling of perovskite solar cell technology

et al. 2016

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“…Recently, Spyropoulos et al reported a very small area perovskite module (AA = 0.3 cm 2 ), basically composed by two small area planar heterojunction PSCs connected in series. [42] The authors realized a P1-P2-P3 procedure in which the P3 step has been made by means of a depth-resolved laser patterning over a laminated counter-electrode. The fluence and depth of the focal point inside the material had to be controlled to avoid damage to the plastic substrate and of the counter-electrode.…”

Section: Index Terms-perovskites Solar Cells Laser Processing Solarmentioning

confidence: 99%

Laser-Patterning Engineering for Perovskite Solar Modules With 95% Aperture Ratio

Palma

Matteocci

Agresti

et al. 2017

IEEE J. Photovoltaics

124

129

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Small area hybrid organometal halide perovskite\ud based solar cells reached performances comparable to the multicrystalline\ud silicon wafer cells. However, industrial applications\ud require the scaling-up of devices to module-size. Here, we report\ud the first fully laser-processed large area (14.5 cm2) perovskite solar\ud module with an aperture ratio of 95% and a power conversion\ud efficiency of 9.3%. To obtain this result, we carried out thorough\ud analyses and optimization of three laser processing steps required\ud to realize the serial interconnection of various cells. By analyzing\ud the statistics of the fabricated modules, we show that the error\ud committed over the projected interconnection dimensions is sufficiently\ud lowto permit even higher aperture ratios without additional\ud efforts

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“…[15][16][17][18][19] Active layer lamination has previously been demonstrated for polymer/polymer blends 20 and also polymer/PCBM bilayers, 21 but with poor PCE below 0.1%. In this work we show that the polymer:PCBM bulk heterojunction (BHJ), coated on flexible PEDOT(PSS) electrodes, works as an excellent lamination adhesive to generate well performing solar cells, removing the need for adhesive additives.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric photocurrent extraction in semitransparent laminated flexible organic solar cells

et al. 2018

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1Scalable production methods and low-cost materials with low embodied energy are key to success for organic solar cells. PEDOT (PSS) electrodes meet these criteria and allow for low-cost and all solution-processed solar cells. However, such devices are prone to shunting. In this work we introduce a roll-to-roll lamination method to construct semitransparent solar cells with a PEDOT(PSS) anode and an polyethyleneimine (PEI) modified PEDOT(PSS) cathode. We use the polymer:PCBM active layer coated on the electrodes as the lamination adhesive. Our lamination method efficiently eliminates any shunting. Extended exposure to ambient degrades the laminated devices, which manifests in a significantly reduced photocurrent extraction when the device is illuminated through the anode, despite the fact that the PEDOT(PSS) electrodes are optically equivalent. We show that degradation-induced electron traps lead to increased trap-assisted recombination at the anode side of the device. By limiting the exposure time to ambient during production, degradation is significantly reduced. We show that lamination using the active layer as the adhesive can result in device performance equal to that of conventional sequential coating.npj Flexible Electronics (2018) 2:4 ; doi:10.1038/s41528-017-0017-6 INTRODUCTIONThere is an urgent need to replace the present fossil-based energy production with sustainable energy sources. Thin-film solar cells and organic photovoltaics (OPV) in particular are technologies with a large potential to contribute to the energy transition due to very short energy payback times 1 and scalable production methods.2 The best devices approach 12% power conversion efficiency (PCE) 3 and due to improved OPV performance under low light-intensity conditions the yearly-average energy output is improved, reducing the competitive gap between OPV and silicon photovoltaics. Nevertheless, the OPV technology is not intended to compete with the high PCE of silicon-based solar cell installations but is instead targeted for entry markets that require the unique features of OPV, such as curved form factors enabled by flexible substrates, color tunability, semitransparency, low weight and the uniquely low energy payback times.To realize these advantages materials and production methods must be scalable with high throughput, such as roll-to-roll printing under ambient atmosphere. Vacuum-based processing, commonly used to deposit reflective (such as aluminum/chromium or silver) or transparent metal electrodes (indium tin oxide (ITO)), should ideally be avoided due to their high energy input.4 Indium in ITO is in addition too scarce to be a scalable alternative. Solution-processed electrodes have a significantly lower embodied energy and allow for the high speed printing needed for scalable production. To fully utilize the benefits of solution processing all layers in the device should be coated or printed.The use of semitransparent Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), PEDOT(PSS) electrodes for both the anode

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Organic and perovskite solar modules innovated by adhesive top electrode and depth-resolved laser patterning

Cited by 64 publications

References 52 publications

Research Update: Large-area deposition, coating, printing, and processing techniques for the upscaling of perovskite solar cell technology

Research Update: Large-area deposition, coating, printing, and processing techniques for the upscaling of perovskite solar cell technology

Laser-Patterning Engineering for Perovskite Solar Modules With 95% Aperture Ratio

Asymmetric photocurrent extraction in semitransparent laminated flexible organic solar cells

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