Wide band gap diketopyrrolopyrrole-based conjugated polymers incorporating biphenyl units applied in polymer solar cells

Li, Weiwei; Furlan, A Alice; Roelofs, W. S. Christian; Hendriks, Koen H.; Pruissen, Gijs W. P. van; Wienk, Martijn M.; Janssen, Raj René

doi:10.1039/c3cc47868h

Cited by 66 publications

(45 citation statements)

References 24 publications

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“…P294 BHJ OSCs show a PCE of 3.7% with a J sc of 6.7 mA/cm 2 , a V oc of 0.89 V, and a FF of 62%, and P295 cells exhibit a PCE of 4.1% with a J sc of 7.7 mA/cm 2 , a V oc of 0.93 V, and a FF of 56%. 392 Installation of fluorine on biphenyl increases the V oc s but decreases J sc s and FFs for P294 and P295 cells, likely related to the degraded charge transport. The P293 OSC performance is greater than that of a fused biphenyl, i.e., the naphthalene-based polymer P235.…”

Section: Diketopyrrolopyrrole-based Polymer Semiconductors For Oscsmentioning

confidence: 97%

Imide- and Amide-Functionalized Polymer Semiconductors

2014

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Section: Diketopyrrolopyrrole-based Polymer Semiconductors For Oscsmentioning

confidence: 97%

Imide- and Amide-Functionalized Polymer Semiconductors

2014

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“…In 2014, Janssen's group reported a series of DPP containing copolymers (P52) with nonbridged biphenyls as the donor unit [62]. Fluorine atoms were introduced to the biphenyl unit to finely tune the energy levels and the V oc .…”

Section: Dpp-containing D-a Polymers For Psc Applicationsmentioning

confidence: 99%

Donor Materials for Organic Solar Cell (OSC)

Song

2014

Organic and Hybrid Solar Cells

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In the past 10 years, the highest efficiency obtained from organic photovoltaics (OPVs), such as bulk heterojunction (BHJ) polymer solar cells (PSCs), has risen from 2.5 to 11 %, while the solution-processed small molecule (SM) BHJ solar cells arrived at competitive level of 10 %. This rapid progress was achieved by the development of both materials synthesis and device fabrication. With the better understanding of the mechanism of the photon-to-electron conversion process in OPV, the commercialization of PSCs could be realized soon. Nowadays, a lot of efforts have been devoted to developing of new donor, acceptor, and interfacial layer materials, optimizing nanostructures of the active layer, fabricating new device architectures, and so on.The development of new donor materials for PSCs is one of the most popular research topics in the field of PSCs and many excellent results have been published. A variety of polymers and SMs have been reported as donor materials for OPVs and some of them might be candidates for the commercialization later. From the reported structures, the conjugated backbones of polymers for OPV can be arbitrarily classified into a few categories based on the constitution of the repeating unit, namely, (a) homopolymers, (b) donor-acceptor polymers, (c) quinoid polymers, and (d) other types of polymers; whereas the SM donors can be classified into the following categories based on their main structures, (a) donor-acceptor type molecules, (b) squaraine dyes, and (c) oligomer and dendrimers.

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“…Among the films, that of PDPPPyT showed a much finer and denser texture and nanophase separation between the polymer and PC 71 BM crystallites, which could result in a high PCE with a high J sc value. 6,7,37 The external quantum efficiency (EQE) spectra of the PSC devices are displayed in Fig. 4b.…”

Section: Psc Performance Of the Blend Films With Pc 71 Bmmentioning

confidence: 99%

Tunable light harvesting properties of a highly crystalline alternating terpolymer for high-performing solar cells

Kim

Lee

et al. 2015

Polym. Chem.

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To achieve power conversion efficiency in organic photovoltaic devices, we designed and synthesized a new DPP-based alternating terpolymer, PDPPPyT, containing DPP as an electron accepting unit and pyrene and thiophene as electron donating units. The donor-acceptor alternating copolymers PDPPPy and PDPPT were also prepared as control materials. The optical properties and highest occupied molecular orbital of PDPPPyT were found to be between those of the PDPPPy and PDPPT copolymers. GI-XRD analysis indicated that the PDPPPy and PDPPT copolymers had typical edge-on orientation on the substrate, whereas the PDPPPyT terpolymer showed face-on orientation in pristine and annealed films. Although PDPPPyT has two different donating units, pyrene and thiophene, in the repeating unit, the corresponding TFT exhibited high hole mobility of ~0.8 cm 2 V −1 s −1 . A PSC made of PDPPPyT and PC71BM displayed power conversion efficiency values of around 4.0%, which is higher than those of PDPPPy-and PDPPT-based PSCs. This improved performance was attributed to the more efficient light-harvesting properties of PDPPPyT in the solar spectrum. These results unambiguously demonstrated that this new synthetic strategy for regular conjugated terpolymers could be used to tune the molecular energy levels and optical properties to obtain high-performance PSCs.

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Wide band gap diketopyrrolopyrrole-based conjugated polymers incorporating biphenyl units applied in polymer solar cells

Cited by 66 publications

References 24 publications

Imide- and Amide-Functionalized Polymer Semiconductors

Imide- and Amide-Functionalized Polymer Semiconductors

Donor Materials for Organic Solar Cell (OSC)

Tunable light harvesting properties of a highly crystalline alternating terpolymer for high-performing solar cells

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