Fully-sprayed flexible polymer solar cells with a cellulose-graphene electrode

Notte, Luca La; Cataldi, Pietro; Ceseracciu, Luca; Bayer, Ilker S.; Marras, Sergio; Villari, Enrica; Brunetti, Francesca; Reale, Andrea

doi:10.1016/j.mtener.2017.12.010

Cited by 56 publications

(51 citation statements)

References 55 publications

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“…This configuration had been previously shown to improve the open circuit voltage (V OC ) and short circuit current (J SC ). [79] This demonstrates that i) the biocomposite has a suitable value of sheet resistance for this application due to the favorable isotropic electrical conduction pathways among GnPs within the sample bulk morphology and ii) the electronic glue is compatible with the biocomposite by ensuring the physical adhesion needed for the vertical conduction. This system was employed since it forms highly crystalline and sufficiently pure small polymer domains that ensure robust morphology and excellent performance.…”

Section: Wwwadvsustainsyscommentioning

confidence: 88%

“…[75,76] Plant leaves function as flexible, biodegradable, and lightweight solar energy harvesters and converters. [79][80][81] Among the possible solvent-assisted production methods, spray-coating possesses many advantages such as large area adaptation and the ability to coat both linear and curved substrates [82,83] in short times. Furthermore, the materials employed for PSCs are often solution-processable and of low cost.…”

Section: Top Electrode For Flexible Photovoltaicsmentioning

confidence: 99%

“…[79] The active area of the flexible solar cell was 15 mm 2 . [79] The active layer was composed of a polythiophene polymer (PffBT4T-2OD) and PC 70 BM fullerene. [86] First, a double layer composed of zinc oxide (ZnO; ≈20 nm thick) and polyethylenimine (PEIE; ≈10 nm thick) was sprayed as an electron transport and extraction system.…”

Section: Wwwadvsustainsyscommentioning

confidence: 99%

“…[79] The active layer was composed of a polythiophene polymer (PffBT4T-2OD) and PC 70 BM fullerene. [79] However, organic photovoltaic devices based on this biocomposite top electrode shows electrical performances significantly higher than other fully sprayed devices based on glass or fabrics. [87] Another advantage is the easy scalability due to the large thickness, [82] thus facilitating the coating of large-area substrates, even with a rough and irregular surface.…”

Section: Wwwadvsustainsyscommentioning

confidence: 99%

See 3 more Smart Citations

Sustainable Electronics Based on Crop Plant Extracts and Graphene: A “Bioadvantaged” Approach

Cataldi

Heredia‐Guerrero

Guzmán-Puyol

et al. 2018

Advanced Sustainable Systems

Self Cite

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In today's fast‐paced and well‐connected world, consumer electronics are evolving rapidly. As a result, the amount of discarded electronic devices is becoming a major health and environmental concern. The rapid expansion of flexible electronics has the potential to transform consumer electronic devices from rigid phones and tablets to robust wearable devices. This means increased use of plastics in consumer electronics and the potential to generate more persistent plastic waste for the environment. Hence, today, the need for flexible biodegradable electronics is at the forefront of minimizing the mounting pile of global electronic waste. A “bioadvantaged” approach to develop a biodegradable, flexible, and application‐adaptable electronic components based on crop components and graphene is reported. More specifically, by combining zein, a corn‐derived protein, and aleuritic acid, a major monomer of tomato cuticles and sheellac, along with graphene, biocomposite conductors having low electrical resistance (≈10 Ω sq−1) with exceptional mechanical and fatigue resilience are fabricated. Further, a number of high‐performance electronic applications, such as THz electromagnetic shielding, flexible GHz antenna construction, and flexible solar cell electrode, are demonstrated. Excellent performance results are measured from each application comparable to conventional nondegrading counterparts, thus paving the way for the concept of “plant‐e‐tronics” towards sustainability.

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Section: Wwwadvsustainsyscommentioning

confidence: 88%

Section: Top Electrode For Flexible Photovoltaicsmentioning

confidence: 99%

Section: Wwwadvsustainsyscommentioning

confidence: 99%

Section: Wwwadvsustainsyscommentioning

confidence: 99%

See 2 more Smart Citations

Sustainable Electronics Based on Crop Plant Extracts and Graphene: A “Bioadvantaged” Approach

Cataldi

Heredia‐Guerrero

Guzmán-Puyol

et al. 2018

Advanced Sustainable Systems

Self Cite

View full text Add to dashboard Cite

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“…In recent years, increased interest in organic devices, such as solar cells (SCs), was observed in both academia and industry, focusing on high efficiency and solution-based fabrication [1][2][3]. Comparing different configurations of polymer solar cells (PSCs), a classification into mesoscopic (n-i-p) PSCs, planar (n-i-p) PSCs, and inverted planar (p-i-n) PSCs can be made [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

PEDOT:PSS in Water and Toluene for Organic Devices—Technical Approach

et al. 2020

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Poly(3,4-ethylenedioxythiophene:poly(styrenesulfonate) (PEDOT:PSS) water and toluene solutions were investigated in detail, taking into consideration their stability, wettability, transparency, and electrochemical properties, along with change polarity caused by dopant. As dopant, methanol, ethanol, and isopropanol were used with different dipole moments (1.70, 1.69, and 1.66 D) and dielectric constants (33.0, 24.5, and 18.0). Three techniques, i.e., spin coating, doctor blade coating, and spray coating, were employed to created PEDOT:PSS layers on glass, glass/indium tin oxide (ITO), and glass/fluorine-doped tin oxide (FTO) substrates with optimized technical parameters for each used equipment. All used PEDOT:PSS water and toluene solutions demonstrated good wetting properties with angles below 30° for all used surfaces. Values of the energy bandgap (Eg) of PEDOT:PSS investigated by cyclic voltammetry (CV) in solution showed increase energy Eg along with addition of alcohol to the mixture, and they were found in the range of 1.20 eV to 2.85 eV. The opposite tendency was found for the Eg value of the PEDOT:PSS layer created from water solution. The storage effect on PEDOT:PSS layers detected by CV affected only the lowest unoccupied molecular orbital (LUMO) level, thereby causing changes in the energy bandgap. Finally, simple devices were constructed and investigated by infrared (IR) thermographic camera to investigate the surface defects on the created PEDOT:PSS layers. Our study showed that a more stable PEDOT:PSS layer without pin-holes and defects can be obtained from water and toluene solutions with isopropanol via the spin coating technique with an optimal speed of 3000 rpm and time of 90 s.

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Printed Solar Cells and Energy Storage Devices on Paper Substrates

Brunetti

Operamolla

Castro‐Hermosa

et al. 2019

Adv Funct Materials

Self Cite

143

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Paper is a flexible material, commonly used for information storage, writing, packaging or specialized purposes. It also has strong appeal as a substrate in the field of flexible printed electronics. Many applications, including safety, merchandising, smart labels/packing, chemical/biomedical sensors, require an energy source to power operation. Here we review progress regarding development of photovoltaic and energy storage devices on cellulosic substrates where one or more of the main material layers are deposited via solution processing or printing. Paper can be used simply as the flexible substrate or, exploiting its porous fibrelike nature, as an active film by infiltration or co-preparation with electronic materials. Solar cells with efficiencies of up to  4% on opaque and 9% on transparent substrates have been demonstrated. Recent developments in paper-based supercapacitors and batteries are also reviewed with maximum achieved capacity of 1350 mF cm -2 and 2000 mAh g -1 respectively.Analysing the literature, it becomes apparent that more work needs to be carried out in continuing to improve peak performance, but especially stability and the application of printing techniques, even roll-to-roll, over large areas. Paper is not only environmentally friendly and recyclable, it is thin, flexible, low-weight, biocompatible, and low-cost.

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Fully-sprayed flexible polymer solar cells with a cellulose-graphene electrode

Cited by 56 publications

References 55 publications

Sustainable Electronics Based on Crop Plant Extracts and Graphene: A “Bioadvantaged” Approach

Sustainable Electronics Based on Crop Plant Extracts and Graphene: A “Bioadvantaged” Approach

PEDOT:PSS in Water and Toluene for Organic Devices—Technical Approach

Printed Solar Cells and Energy Storage Devices on Paper Substrates

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