Synthesis and characterization of benzobisthiazole based polymers as donor materials for organic solar cells

Kuznetsov, Petr M.; Kuznetsov, Ilya E.; Klimovich, Irina V.; Troshin, Pavel A.; Akkuratov, Alexander V.

doi:10.1016/j.mencom.2021.01.008

Cited by 7 publications

(4 citation statements)

References 25 publications

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“…The synthesis of conjugated polymers P1–P8 was accomplished from monomers A1 , A2 (ref. 34 and 35) and D1–D8 via the Stille polycondensation reaction as shown in Scheme 1. To control the course of the polycondensation reaction, dynamic GPC was used.…”

Section: Resultsmentioning

confidence: 99%

Novel benzodithiophene-TTBTBTT copolymers: synthesis and investigation in organic and perovskite solar cells

Комиссарова

Kuklin

Maskaev

et al. 2022

Sustainable Energy Fuels

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Section: Resultsmentioning

confidence: 99%

Novel benzodithiophene-TTBTBTT copolymers: synthesis and investigation in organic and perovskite solar cells

Комиссарова

Kuklin

Maskaev

et al. 2022

Sustainable Energy Fuels

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“…In 2021, Akkuratov et al reported two conjugated polymers, P1(m 5 ) and P2(m 5 ), which were composed of 2,6‐BBTz and 4,8‐BBTz units, T units, and BT units to study their difference. [ 105 ] P1(m 5 ) and P2(m 5 ) showed similar optical properties, but P2(m 5 ) exhibited a lower bandgap of 1.58 eV than P1 of 1.66 eV due to strong π–π interactions between the polymer chains in a solid state. Blended with PC 71 BM, P1(m 5 ) possessed a higher J SC compared to P2(m 5 ), which was associated with superior charge transport characteristics and a more favorable morphology of P1(m 5 )/PC 71 BM blend films.…”

Section: Photovoltaic Materials Based On Btz and Bbtzmentioning

confidence: 99%

Recent Advances in Organic Photovoltaic Materials Based on Thiazole‐Containing Heterocycles

Dong

Guo

et al. 2023

Macromol. Rapid Commun.

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Organic solar cells (OSCs) have achieved great progress, driven by the rapid development of wide bandgap electron donors and narrow bandgap non‐fullerene acceptors (NFAs). Among a large number of electron‐accepting (A) building blocks, thiazole (Tz) and its derived fused heterocycles have been widely used to construct photovoltaic materials, especially conjugated polymers. Benefiting from the electron deficiency, rigidity, high planarity, and enhanced intra/intermolecular interactions of Tz‐containing heterocycles, some related photovoltaic materials exhibit proper energy levels, optimized molecular aggregation, and active layer morphology, leading to excellent photovoltaic performance. This review focuses on the progress of Tz‐based photovoltaic materials in the field of OSCs. First, the Tz‐based donor and acceptor photovoltaic materials are reviewed. Then, the materials based on promising Tz‐containing heterocycles, mainly including thiazolo[5,4‐d]thiazole (TzTz), benzo[1,2‐d:4,5‐d’]bis(thiazole) (BBTz), and benzo[d]thiazole (BTz) are summarized and discussed. In addition, the new emerging Tz‐fused structures and their application in OSCs are introduced. Finally, perspectives and outlooks for the further development of Tz‐containing heterocycle‐based photovoltaic materials are proposed.

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“…[35] BBTz has two conjugation pathways of traditional 2,6-BBTz and orthogonal 4,8-BBTz, and the latter extends the conjugation beyond the polymer chain direction, leading to higher interactions between polymer chains. [37] Polymers based on the former are well-studied, [37] while those with the latter have been poorly developed. [38][39][40][41][42][43][44] Chen et al have demonstrated 4,8-BBTz based polymers could obtain high mobilities, long exciton lifetimes, pure domains, and dominant face-on orientation when blending with Y6, thus delivering decent PCEs over 15%.…”

Section: Introductionmentioning

confidence: 99%

“…[ 35 ] BBTz has two conjugation pathways of traditional 2,6‐BBTz and orthogonal 4,8‐BBTz, and the latter extends the conjugation beyond the polymer chain direction, leading to higher interactions between polymer chains. [ 37 ] Polymers based on the former are well‐studied, [ 37 ] while those with the latter have been poorly developed. [ 38–44 ] Chen et al.…”

Section: Introductionmentioning

confidence: 99%

18.6% Efficiency All‐Polymer Solar Cells Enabled by a Wide Bandgap Polymer Donor Based on Benzo[1,2‐d:4,5‐d′]bisthiazole

Wu,

Duan,

et al. 2023

Advanced Materials

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The limited selection of wide bandgap polymer donors for all‐polymer solar cells (all‐PSCs) is a bottleneck problem restricting their further development and remains poorly studied. Herein, a new wide bandgap polymer, namely PBBTz‐Cl, was designed and synthesized by bridging the benzobisthiazole acceptor block and chlorinated benzodithiophene donor block with thiophene units for application as an electron donor in all‐PSCs. PBBTz‐Cl not only possessed a wide bandgap and deep energy levels, but also displayed strong absorption, high‐planar structure, and good crystallinity, making it to be a promising candidate for application as polymer donor in organic solar cells. When paired with the narrow bandgap polymer acceptor PY‐IT, a fibril‐like morphology formed, which facilitated the exciton dissociation and charge transport, contributing to a power conversion efficiency (PCE) of 17.15% of the corresponding all‐PSCs. Moreover, when introducing another crystalline polymer acceptor BTP‐2T2F into the PBBTz‐Cl:PY‐IT host blend, the absorption ditch in the range of 600–750 nm was filled, and the blend morphology was further optimized with the trap density reducing. As a result, the ternary blend all‐PSCs achieved a significantly improved PCE of 18.60%, which is among the highest vales for all‐PSCs to date.This article is protected by copyright. All rights reserved

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Synthesis and characterization of benzobisthiazole based polymers as donor materials for organic solar cells

Cited by 7 publications

References 25 publications

Novel benzodithiophene-TTBTBTT copolymers: synthesis and investigation in organic and perovskite solar cells

Novel benzodithiophene-TTBTBTT copolymers: synthesis and investigation in organic and perovskite solar cells

Recent Advances in Organic Photovoltaic Materials Based on Thiazole‐Containing Heterocycles

18.6% Efficiency All‐Polymer Solar Cells Enabled by a Wide Bandgap Polymer Donor Based on Benzo[1,2‐d:4,5‐d′]bisthiazole

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