A star-shaped conjugated molecule featuring a triazole core and diketopyrrolopyrrole branches is an efficient electron-selective interlayer for inverted polymer solar cells

Chen, Wei-Jen; Cheng, Yu‐Che; Kuo, Da-Wei; Chen, Chin‐Ti; Liu, Bo‐Tau; Jeng, Ru‐Jong; Lee, Rong-Ho

doi:10.1039/c8ra05360j

Cited by 6 publications

(3 citation statements)

References 54 publications

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“…It is worthy to start this section by introducing some high-molecular-weight and branched molecules, which can serve as "bridging" examples between polymer universe and molecules libraries. In a recent report, Chen et al describe a novel triazole-cored, star-shaped, conjugated molecule TDGTPA, to be used as compatibilizer in an inverted P3HT:PC 71 BM solar cell [156]. From a structural point of view, TDGTPA comprises a central triazole core, 2,5-thienyl diketopyrrolo-pyrrole units as π-conjugated bridges and responsible for the interaction with the D/A materials, and peripheral tert-butyl-substituted triphenylamine acting as donor unit.…”

Section: Aromatic-core-based Compatibilizersmentioning

confidence: 99%

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

et al. 2020

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Organic Photovoltaics (OPVs) based on Bulk Heterojunction (BHJ) blends are a mature technology. Having started their intensive development two decades ago, their low cost, processability and flexibility rapidly funneled the interest of the scientific community, searching for new solutions to expand solar photovoltaics market and promote sustainable development. However, their robust implementation is hampered by some issues, concerning the choice of the donor/acceptor materials, the device thermal/photo-stability, and, last but not least, their morphology. Indeed, the morphological profile of BHJs has a strong impact over charge generation, collection, and recombination processes; control over nano/microstructural morphology would be desirable, aiming at finely tuning the device performance and overcoming those previously mentioned critical issues. The employ of compatibilizers has emerged as a promising, economically sustainable, and widely applicable approach for the donor/acceptor interface (D/A-I) optimization. Thus, improvements in the global performance of the devices can be achieved without making use of more complex architectures. Even though several materials have been deeply documented and reported as effective compatibilizing agents, scientific reports are quite fragmentary. Here we would like to offer a panoramic overview of the literature on compatibilizers, focusing on the progression documented in the last decade.

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Section: Aromatic-core-based Compatibilizersmentioning

confidence: 99%

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

et al. 2020

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“…[5][6][7] However, the entanglement of polymer chains in polymer-polymer blends disfavors the formation of a phaseseparated morphology that can facilitate charge separation and transportation. [8][9][10][11][12] Consequently, the overall photovoltaic performances of current all-PSCs are less than those of devices based on small-molecule acceptors. Much effort has been devoted to developing highly efficient polymer acceptors, which are mainly constructed from several electron decient fragments, such as naphthalene diimide (NDI), [13][14][15][16] perylene diimide (PDI), 17,18 B ) N bridged bipyridine (BNBP), 19,20 a fusedring electron acceptor (FREA), [21][22][23] bithiophene imide (BTI).…”

Section: Introductionmentioning

confidence: 99%

Naphthalene diimide-based random terpolymer acceptors for constructing all-polymer solar cells with enhanced fill factors

Liu

et al. 2022

RSC Adv.

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“…In the past few years, a growing number of chemists focus their attention on development new π-conjugated polymers for electronics applications [5,6,7,8,9,10,11,12]. Some of the most widely studied polymers are donor–acceptor (D–A) type polymers due to its intrinsic properties such as high charge transfer mobility.…”

Section: Introductionmentioning

confidence: 99%

Conjugated Polymers Containing Building Blocks 1,3,4,6-Tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), Benzodipyrrolidone (BDP) or Naphthodipyrrolidone (NDP): A Review

Deng

et al. 2019

Polymers

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π-Conjugated organic donor–acceptor (D–A) type polymers are widely developed and used in electronic device. Among which, diketopyrrolopyrrole (DPP)-based polymers have received the most attention due to their high performances. The novel chromophores named 1,3,4,6-tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), benzodipyrrolidone (BDP) and naphthodipyrrolidone (NDP) are resemble DPP in chemical structure. IsoDPP is an isomer of DPP, with the switching position of carbonyl and amide units. The cores of BDP and NDP are tri- and tetracyclic, whereas isoDPP is bicyclic. π-Conjugation extension could result polymers with distinct optical, electrochemical and device performance. It is expected that the polymers containing these high-performance electron-deficient pigments are potential in the electronic device applications, and have the potential to be better than the DPP-based ones. IsoDPP, BDP, and NDP based polymers are synthesized since 2011, and have not receive desirable attention. In this work, the synthesis, properties (optical and electrochemical characteristics), electronic device as well as their relationship depending on core-extension or structure subtle optimization have been reviewed. The final goal is to outline a theoretical scaffold for the design the D–A type conjugated polymers, which is potential for high-performance electronic devices.

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A star-shaped conjugated molecule featuring a triazole core and diketopyrrolopyrrole branches is an efficient electron-selective interlayer for inverted polymer solar cells

Abstract: A novel triazole-cored, star-shaped, conjugated molecule (TDGTPA) has been synthesized for use as an electron-selective interlayer in inverted polymer solar cells (PSCs).

Cited by 6 publications

References 54 publications

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

Naphthalene diimide-based random terpolymer acceptors for constructing all-polymer solar cells with enhanced fill factors

Conjugated Polymers Containing Building Blocks 1,3,4,6-Tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), Benzodipyrrolidone (BDP) or Naphthodipyrrolidone (NDP): A Review

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