Roll coated large area ITO- and vacuum-free all organic solar cells from diketopyrrolopyrrole based non-fullerene acceptors with molecular geometry effects

Brandt, Rasmus Guldbæk; Zhang, Fei; Andersen, Thomas Rieks; Angmo, Dechan; Shi, Minmin; Gurevich, Leonid; Krebs, Frederik C.; Andreasen, Jens Wenzel; Yu, Donghong

doi:10.1039/c6ra06898g

Cited by 13 publications

(9 citation statements)

References 56 publications

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“…These values were higher than those of the P3HT: PC 61 BM blended films (3.18%, 0.62 eV) and the P3HT:d2 devices showed much better thermal stability. Using a central phenyl moiety flanked with three DPP moieties (d3) has also been investigated [61]. The dihedral angle between the core and the DPP subunits was calculated to be about 25° and the triangular nonplanar structure reduced the crystallinity compared to linear DPP derivatives.…”

Section: Star-shaped Dpp Oligomersmentioning

confidence: 99%

Development of non-fullerene electron acceptors for efficient organic photovoltaics

Kafourou

et al. 2022

SN Appl. Sci.

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Compared to fullerene based electron acceptors, n-type organic semiconductors, so-called non-fullerene acceptors (NFAs), possess some distinct advantages, such as readily tuning of optical absorption and electronic energy levels, strong absorption in the visible region and good morphological stability for flexible electronic devices. The design and synthesis of new NFAs have enabled the power conversion efficiencies (PCEs) of organic photovoltaic (OPV) devices to increase to around 19%. This review summarises the important breakthroughs that have contributed to this progress, focusing on three classes of NFAs, i.e. perylene diimide (PDI), diketopyrrolopyrrole (DPP) and acceptor–donor–acceptor (A-D-A) based NFAs. Specifically, the PCEs of PDI, DPP, and A-D-A series based non-fullerene OPVs have been reported up to 11%, 13% and 19%, respectively. Structure–property relationships of representative NFAs and their impact on OPV performances are discussed. Finally, we consider the remaining challenges and promising directions for achieving high-performing NFAs.

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Section: Star-shaped Dpp Oligomersmentioning

confidence: 99%

Development of non-fullerene electron acceptors for efficient organic photovoltaics

Kafourou

et al. 2022

SN Appl. Sci.

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“…Ph(DPP) 3 exhibited high electron mobility and favorable film performance when using P3HT as the donor. The device based on P3HT:Ph(DPP) 3 had a J SC of 1.48 mA cm −2 and PCE of 0.31 % . Chen and co‐workers designed B(PDI) 3 by using PDI as an end‐capping unit.…”

Section: Star‐shaped Small‐molecule Acceptorsmentioning

confidence: 99%

Star‐Shaped Non‐Fullerene Small Acceptors for Organic Solar Cells

Pan

Sun

2019

ChemSusChem

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Over the past decade, organic solar cells (OSCs) have received considerable attention from the scientific community and are considered one of the most important sources of low‐cost electricity production. Recently, OSC‐based on star‐shaped small‐molecule (SM) non‐fullerene acceptors (NFAs) have developed rapidly, and the highest power conversion efficiency (PCE) has exceeded 10 %. The star‐shaped SM NFAs not only have three‐dimensional charge‐transport characteristics similar to fullerenes but also have a strong light absorption capacities and easily tunable energy levels. They are potential candidates as outstanding acceptor materials. In this Review, research progress in of star‐shaped SM NFAs OSCs is reviewed specifically. Moreover, the influence of molecular structure, central unit, and peripheral linking group on OSC performance has been evaluated systematically. This Review could stimulate inspiration for designing high‐performance OSC acceptor materials in the future.

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“…Recently Yu and co‐workers synthesized a molecular acceptor DPP36 with three DPP units directly connected at 2, 4, 6 positions of benzene, exhibited PCE up to 0.54 % when blended with P3HT with J sc of 2.72 mA cm −2 and V oc of 1.1 V.…”

Section: Non‐fullerene Acceptors Containing Three Dpp/pdi/btd Units: mentioning

confidence: 99%

Small Molecule Based Non‐Fullerene Acceptors: A Comparative Study

Patil

Misra

2018

The Chemical Record

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Organic solar cells (OSCs) have gained attention of the scientific community from the last decade and are now considered as one of the most important source for low-cost power production. The recent rapid progress in non-fullerene acceptors in BHJ indicates that they have potential to compete with fullerene-based BHJ OSCs. The present review addressed the systematic comparison among various acceptors (diketopyrrolopyrrole (DPP), benzothiadiazole (BTD) and perylenediimide (PDI) based acceptors) in order to design and improve the performance of small molecules based non-fullerene acceptors. This review focuses on the performance of small molecule non-fullerene acceptors based on DPP, BTD and PDI for OSCs with respect to the change in molecular structures, energy levels, and PCE. A systematic comparison on the effect of molecular architecture, side chains on their performance is provided with the intention of evaluating the challenge to make highly efficient acceptors for the next generation organic photovoltaics.

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Roll coated large area ITO- and vacuum-free all organic solar cells from diketopyrrolopyrrole based non-fullerene acceptors with molecular geometry effects

Abstract: We investigate three diketopyrrolopyrrole based small molecular non-fullerene acceptors with molecular geometry effect on mainly their PV performance of both spin-coated ITO based and roll coated large area, ITO- and vacuum-free organic solar cells.

Cited by 13 publications

References 56 publications

Development of non-fullerene electron acceptors for efficient organic photovoltaics

Development of non-fullerene electron acceptors for efficient organic photovoltaics

Star‐Shaped Non‐Fullerene Small Acceptors for Organic Solar Cells

Small Molecule Based Non‐Fullerene Acceptors: A Comparative Study

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