Flexible ITO-free polymer solar cells based on highly conductive PEDOT:PSS and a printed silver grid

Muhsin, Burhan; Roesch, Roland; Gobsch, G.; Hoppe, Harald

doi:10.1016/j.solmat.2014.08.009

Cited by 36 publications

(22 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Increasing the number of twist-untwist cycles beyond 100 did not induce any further increase in the maximum oscillation range of 4%. Although a five-fold increase is evident, the final sheet resistance is comparable or better than other reported carbon-based flexible conductors [45][46][47] or non-carbon-based conductors undergoing similar fatigue tests, [48,49] which are not based on "bioadvantaged" plant-based resources (see Table S1, Supporting Information, for more details). Indeed, three light-emitting diodes (LEDs) were uninterruptedly powered at a voltage of 12 V with the biocomposite undergoing several twist-untwist events without any loss in brightness.…”

Section: Resultsmentioning

confidence: 52%

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

Cataldi

Heredia‐Guerrero

Guzmán-Puyol

et al. 2018

Advanced Sustainable Systems

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 52%

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

Cataldi

Heredia‐Guerrero

Guzmán-Puyol

et al. 2018

Advanced Sustainable Systems

View full text Add to dashboard Cite

show abstract

“…Among these materials, conjugated polymers are particularly attractive as they combine high absorption cross sections with low-cost production and deposition over flexible substrates. [1][2][3] However, typical efficiencies of solar cells based on conjugated polymers are currently limited to <11%. 4 The key parameters to understand photoinduced function in these devices are the interactions of polymer structural units (monomers), both within a single polymer chain and between neighboring polymer chains in aggregates.…”

Section: Introductionmentioning

confidence: 99%

Relaxation dynamics and exciton energy transfer in the low-temperature phase of MEH-PPV

Consani

Koch

Panzer

et al. 2015

The Journal of Chemical Physics

View full text Add to dashboard Cite

Understanding the effects of aggregation on exciton relaxation and energy transfer is relevant to control photoinduced function in organic electronics and photovoltaics. Here, we explore the photoinduced dynamics in the low-temperature aggregated phase of a conjugated polymer by transient absorption and coherent electronic two-dimensional (2D) spectroscopy. Coherent 2D spectroscopy allows observing couplings among photoexcited states and discriminating band shifts from homogeneous broadening, additionally accessing the ultrafast dynamics at various excitation energies simultaneously with high spectral resolution. By combining the results of the two techniques, we differentiate between an initial exciton relaxation, which is not characterized by significant exciton mobility, and energy transport between different chromophores in the aggregate.

show abstract

“…Polymer solar cells (PSCs)t hat contain bulk heterojunction (BHJ) interconnected networks of p-conjugated polymers and fullerened erivatives have been studied widely.F rom vigorous previouss tudies, the powerc onversion efficiency (PCE) of PSCs has increased gradually to reach greater than 10 %f or singlestructured evices. [1][2][3][4] With regard to efficiency,P SCs may be suitable for av ariety of applications because of their low cost, simple fabrication process, light weight, and high mechanical flexibility.U nfortunately,t he high efficiency of PSCs has mostly originated from highly rigid conductive glass substrates based on indium tin oxide (ITO) with poor mechanical flexibility.F or this reason, various alternative transparent conductive electrode (TCE) candidates have been researched, such as graphene, [5][6][7][8] carbon nanotubes, [9][10][11][12] metal nanowires, [13][14][15][16][17] poly (3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PE-DOT:PSS), [18][19][20][21][22][23] and metal mesh grids, [24][25][26][27] to replacet he conventional TCEs for flexible PSCs.A mong these TCE alternatives, the Ag mesh electrode is an attractive candidate because of its variousa dvantages,s uch as its good electrical, optical, and flexible characteristics, the possibility of mass production, and large area processibilityf or flexible optoelectronic devices. [28][29][30] Nonetheless, the direct applicationo ft he Ag mesh TCE for organic electronics still has drawbacks such as:1 )the possibility of shorting in the device because of the high pitch of the metal grid with as cale of several micrometers, 2) current inhomogeneity in the device based on the mesh structure, and 3) adhesionp roblems between the Ag mesh electrode and the flexible substrate.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Silver Mesh Electrode for ITO‐Free Flexible Polymer Solar Cells with Good Mechanical Stability

Kim

Kang

et al. 2016

ChemSusChem

View full text Add to dashboard Cite

Herein, we report a tailored Ag mesh electrode coated with poly(3,4-ethylenedioxythiophene) (PEDOT) polymer on a flexible polyethylene terephthalate (PET) substrate. The introduction of this highly conductive polymer solves the existing problems of Ag mesh-type transparent conductive electrodes, such as high pitch, roughness, current inhomogeneity, and adhesion problems between the Ag mesh grid and PEDOT polymer or PET substrate, to result in excellent electron spreading from the discrete Ag mesh onto the entire surface without sacrificing sheet conductivity and optical transparency. Based on this hybrid anode, we demonstrate highly efficient flexible polymer solar cells (PSCs) with a high fill factor of 67.11 %, which results in a power conversion efficiency (PCE) of 6.9 % based on a poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b'] dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl) carbonyl]thieno[3,4-b]thiophenediyl}):[6,6]-phenyl-C71 -butyric acid methyl ester bulk heterojunction device. Furthermore, the PSC device with the Ag mesh electrode also exhibits a good mechanical bending stability, as indicated by a 70 % retention of the initial PCE after 500 bending cycles compared with the PSC device with a PET/indium tin oxide electrode, which retained 0 % of the initial PCE after 300 bending cycles.

show abstract

Flexible ITO-free polymer solar cells based on highly conductive PEDOT:PSS and a printed silver grid

Cited by 36 publications

References 39 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

Relaxation dynamics and exciton energy transfer in the low-temperature phase of MEH-PPV

Hybrid Silver Mesh Electrode for ITO‐Free Flexible Polymer Solar Cells with Good Mechanical Stability

Contact Info

Product

Resources

About