Miscibility-Controlled Mechanical and Photovoltaic Properties in Double-Cable Conjugated Polymer/Insulating Polymer Composites

Xie, Chengcheng; Xiao, Chengyi; Jiang, Xudong; Liang, Shijie; Liu, Chunhui; Zhang, Zhou; Chen, Qiaomei; Li, Weiwei

doi:10.1021/acs.macromol.1c02111

Cited by 18 publications

(13 citation statements)

References 55 publications

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“…Currently, several methods have been used to improve the ductility of the active layers but affect the photovoltaic performance, inevitably. 29,63–67 Further exploration like introducing soft linkage in the main chain of polymer acceptors to obtain high-performance polymer acceptors with high ductility is necessary (>30%). 68…”

Section: Resultsmentioning

confidence: 99%

“…Currently, several methods have been used to improve the ductility of the active layers but affect the photovoltaic performance, inevitably. 29,[63][64][65][66][67] Further exploration like introducing soft linkage in the main chain of polymer acceptors to obtain high-performance polymer acceptors with high ductility is necessary (430%). 68 To prove the versatility of our is-anode and is-cathode in semi-conductor applications, the organic light-emitting diode (OLED) based on TPU@AgNWs and AAA as the front and back STE was also fabricated.…”

Section: Papermentioning

confidence: 99%

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Intrinsically stretchable, semi-transparent organic photovoltaics with high efficiency and mechanical robustness via a full-solution process

Huang

et al. 2023

Energy Environ. Sci.

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Section: Resultsmentioning

confidence: 99%

Section: Papermentioning

confidence: 99%

Intrinsically stretchable, semi-transparent organic photovoltaics with high efficiency and mechanical robustness via a full-solution process

Huang

et al. 2023

Energy Environ. Sci.

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“…They further introduced three different insulating polymers (PS, styrenebutylene-styrene (SBS), and PDMS) into JP02 thin films. [60] The measured miscibility order was JP02-PDMS < JP02-SBS < JP02-PS. The optimal…”

Section: Single-component Active Layermentioning

confidence: 94%

“…They further introduced three different insulating polymers (PS, styrenebutylene‐styrene (SBS), and PDMS) into JP02 thin films. [ 60 ] The measured miscibility order was JP02‐PDMS < JP02‐SBS < JP02‐PS. The optimal blends of JP02‐PS with the best miscibility exhibited COS of up to 4.69% and the corresponding PCE of 6.71% in relative to the neat JP02 film with COS of 2.48% and PCE of 7.51%, while the PCEs reduced to 5.93% and 5.96% along with lower COS in JP02‐PDMS and JP02‐SBS systems, respectively.…”

Section: Methods Toward Mechanically Robust Active Layermentioning

confidence: 99%

Emerging Strategies toward Mechanically Robust Organic Photovoltaics: Focus on Active Layer

Yan

Qin

Wang

et al. 2022

Advanced Energy Materials

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The biggest advantages of OPV to complement with inorganic photovoltaics in the future lie in the flexibility of organic active-layer materials, which not only enables the roll-to-roll processing [21] but also allows the integration of OPV devices in many form factors inaccessible by inorganic devices, such as clothing, portable electronics, agricultural greenhouses, biomedical applications, and extremely flexible and stretchable devices. [22][23][24][25][26][27][28][29][30][31][32][33] For instance, Someya et al. [34,35] demonstrated washable, stretchable, and lightweight OPVs with a PCE of 7.9% as textile-compatible power sources, which can be used as a long-term power source for wearables, electronic textiles as well as sensors for the Internet of Things. Mechanical stability is required not only for the portable applications mentioned above, which must accommodate strain as a function of operation, but also enable the solar module to withstand the impact, vibration, and other stresses that occur during manufacturing, transportation, and utility-scale applications. For example, to withstand different sorts of mechanical stresses during the coating process (e.g., roll-to-roll printing), a consistent degree of stretchability and flexibility is necessary. Furthermore, steady performance under constant mechanical stress should be ensured to meet the real-world applications of portable and wearable devices. However, the mechanical reliability of OPVs has received far less attention than other aspects of stress and is far from adequate for commercial application.Conjugated polymers for the OPV active layer have intrinsic mechanical deformability, which sets them apart from their inorganic counterparts. The upper limit of PCE and mechanical stability of the overall OPV device would be determined by an appropriate active layer with optimized morphology. In fact, the active-layer system of the state-of-the-art OPVs with PCEs of ≈20% can hardly meet the demands of flexible electronics. Recently, there has been a growing awareness of the importance of mechanical robustness; scientists have reported a variety of conceptual research aimed at mechanically reliable OPVs, making it a hot issue in the field of OPVs.This perspective first classifies the working scenarios of flexible OPVs: static condition (low-frequency large deformations) and dynamic condition (high-frequency small deformations), and then discusses the corresponding strategies toward mechanically robust active layer: improve ductility, strengthen donor/acceptor interfaces, and restrain molecule migration. Afterward, the current achievements in improving the mechanical robustness of active layers are summarized in the aspects Mechanical stability of organic photovoltaics (OPVs) is required not just for portable applications, which must accommodate strain as a function of operation, but also for manufacturing, transportation, and utility-scale applications. However, the mechanical reliability of OPVs is often disregarded compared with other stress (thermal, oxyg...

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“…In recent years, the developments of non-fullerene acceptors have promoted the power conversion efficiencies (PCEs) of organic solar cells (OSCs) to reach over 18% for single-junction bulk-heterojunction (BHJ) type devices. − However, the two-component BHJ-type systems may suffer from severe degradation under constant heat, illumination, or long-term storage conditions. − For comparison, single-component photoactive materials, in which the donor and acceptor segments are covalently bonded, have been recognized to be more stable materials for application in OSCs. − Moreover, single-component organic solar cells (SCOSCs) can decrease the synthetic complexity and cost of materials as well as technical difficulty and processing cost, which will be the most promising solution to realize the application of organic photovoltaics. ,− Actually, SCOSCs have the research history of over 60 years since the first OSC was reported by using phthalocyanine magnesium powder as a single photoactive layer . However, the lack of single-component conjugated materials and the challenges in regulating morphology so as to improve the charge generation efficiency have hampered the enhancement of PCEs for SCOSCs …”

Section: Introductionmentioning

confidence: 99%

Length Effect of Alkyl Linkers on the Crystalline Transition in Naphthalene Diimide-Based Double-Cable Conjugated Polymers

Xiao

Tan

et al. 2022

Macromolecules

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The alkyl chains as linkers in double-cable conjugated polymers play an important role in the solubility, packing motif, morphology, and voltage loss in single-component organic solar cells (SCOSCs). In this work, we incorporate alkyl linkers with lengths from hexyl (C 6 H 12 ) to hexadecyl (C 16 H 32 ) into naphthalene diimide-based double-cable conjugated polymers. These polymers show a parabolictype distribution in crystallinity, in which the crystalline degree of the polymers is enhanced in sequence from P06 (C 6 H 12 linker) to P12 (C 12 H 24 linker) and then decreased in longer alkyl linkers. These differences bring into deviations like optical bandgaps, packing motif, charge transport, and photovoltaic performance in SCOSCs. This work demonstrates the importance of linkers' length on crystallinity and packing motif as well as provides a new viewpoint in guiding the design of new double-cable conjugated polymers.

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Miscibility-Controlled Mechanical and Photovoltaic Properties in Double-Cable Conjugated Polymer/Insulating Polymer Composites

Cited by 18 publications

References 55 publications

Intrinsically stretchable, semi-transparent organic photovoltaics with high efficiency and mechanical robustness via a full-solution process

Intrinsically stretchable, semi-transparent organic photovoltaics with high efficiency and mechanical robustness via a full-solution process

Emerging Strategies toward Mechanically Robust Organic Photovoltaics: Focus on Active Layer

Length Effect of Alkyl Linkers on the Crystalline Transition in Naphthalene Diimide-Based Double-Cable Conjugated Polymers

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