Diketopyrrolopyrrole-based terpolymers with tunable broad band absorption for fullerene and fullerene-free polymer solar cells

Negash, Asfaw; Genene, Zewdneh; Eachambadi, Raghavendran Thiruvallur; Kesters, Jurgen; Brande, Niko Van den; D’Haen, Jan; Penxten, Huguette; Abdulahi, Birhan A.; Wang, Ergang; Vandewal, Koen; Maes, Wouter; Mammo, Wendimagegn; Manca, Jean; Admassie, Shimelis

doi:10.1039/c8tc06407e

Cited by 20 publications

(40 citation statements)

References 80 publications

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“…Moreover, BTz‐containing terpolymer donors TD31a ‐ c were further developed by Negash group. TD31a ‐ c were comprised of fluorinated benzotriazole (2F‐BTz) and thienothiophene‐capped DPP (TTDPP) as alternative electron‐ deficient groups and electron‐donating BDT unit . Fullerene‐ based and fullerene‐free PSCs were successively fabricated with PC 71 BM ( A3 ) and IEICO‐4F ( A7 ) as acceptor materials.…”

Section: Efficient Terpolymer Donors With Representative Building Blocksmentioning

confidence: 99%

Conjugated Random Terpolymer Donors towards High‐Efficiency Polymer Solar Cells

Gao

Tao

et al. 2020

Chin. J. Chem.

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Over the past decades, polymer solar cells (PSCs) which contain conjugated polymers as electron donor and/or acceptor materials in active layers have achieved the power conversion efficiency (PCE) over 17%. Among them, tremendous alternative donor-acceptor (D-A) type conjugated copolymers have been reported as donor materials. Nevertheless, plenty of rooms still exist to further improve the photovoltaic performance for practical applications. Besides the exploration of the increasingly challenging novel D and/or A monomers to construct new D-A copolymer donors, conjugated random terpolymer donors which involve a third existing monomer (D or A) provide an extra simple promising strategy to promote the photovoltaic performance to a higher level. Herein, recent progress on random terpolymer donors for efficient PSCs was reviewed. Firstly, random terpolymer donors were classified by several typical molecular building blocks. Then, the influences of the third monomer on various random terpolymers were highlighted according to the enhancement of light-harvesting ability, modification of energy levels and optimization of the bulk-heterojunction (BHJ) morphology. Finally, several issues which might be concerned in future research on random terpolymer donors were proposed. This review may be helpful for providing guidelines to design efficient random terpolymer donors as well as better-understanding of the structure-property-performance correlations towards high performance PSCs via random terpolymer approach.

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Section: Efficient Terpolymer Donors With Representative Building Blocksmentioning

confidence: 99%

Conjugated Random Terpolymer Donors towards High‐Efficiency Polymer Solar Cells

Gao

Tao

et al. 2020

Chin. J. Chem.

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“…[34][35][36][37] In particular, the DPP derivatives have been major components in the D-A-type PTs used in PVCs. [38][39][40][41] The DPP-containing polymers oen possess low band gap energies because of their strong electron-accepting properties, thereby extending their light-absorption range to 800-900 nm. [42][43][44] Furthermore, the high tendency of these polymers to crystallize enables them to provide high charge carrier mobilities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of the diketopyrrolopyrrole/terpyridine substituted carbazole derivative based polythiophenes for photovoltaic cells

Wang

Tsai

et al. 2020

RSC Adv.

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“…[7,8] Terpolymers are known to be more efficient than copolymers due to high number of conjugation, high molecular weight and tunable band gap. [9,10,11] Still, the synthetic complication is an issue for preparing these polymers.…”

Section: Introductionmentioning

confidence: 99%

EDOT Based Terpolymers: Facile Synthesis via Direct C‐H Arylation and Barrier Layer in Dye Sensitized Solar Cells

et al. 2020

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We report the synthesis and characterization of three 3,4‐ethylene dioxythiophene (EDOT) based terpolymers. The polymers were synthesized in excellent yield via direct C−H arylation reaction between EDOT, 9,9‐di‐(2’‐ethylhexyl)‐2,7‐dibromofluorene and 1,3‐dibromo‐7‐tert‐butylpyrene. The solubility of these terpolymers in common organic solvents has been facilitated by the presence of alkyl side chains. The synthesized polymers have been characterized through gel permeation chromatography, 1H‐Nuclear Magnetic Resonance (1H‐NMR), Fourier transform infrared spectroscopy (FT‐IR), Ultraviolet‐visible spectroscopy (UV‐Vis), and fluorescence spectroscopy. The polymers show optical band gaps in the range of 2.06 ‐ 2.17 eV and HOMO levels of −4.71 eV to −4.70 eV relative to vacuum as determined by UV visible and Cyclic Voltammetry respectively. Dye‐sensitized solar cells (DSSC) using selected terpolymer (TP‐1) as a barrier layer have been fabricated and enhancement in photovoltaic properties was evaluated.

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Diketopyrrolopyrrole-based terpolymers with tunable broad band absorption for fullerene and fullerene-free polymer solar cells

Abstract: Fullerene and fullerene-free organic photovoltaics.

Cited by 20 publications

References 80 publications

Conjugated Random Terpolymer Donors towards High‐Efficiency Polymer Solar Cells

Conjugated Random Terpolymer Donors towards High‐Efficiency Polymer Solar Cells

Synthesis of the diketopyrrolopyrrole/terpyridine substituted carbazole derivative based polythiophenes for photovoltaic cells

EDOT Based Terpolymers: Facile Synthesis via Direct C‐H Arylation and Barrier Layer in Dye Sensitized Solar Cells

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