Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity

Prete, Michela; Ogliani, Elisa; Bregnhøj, Mikkel; Lissau, Jonas Sandby; Dastidar, Subham; Rubahn, H.-G.; Engmann, Sebastian; Skov, Anne Ladegaard; Brook, Michael A.; Ogilby, Peter R.; Printz, Adam D.; Turkovic, Vida; Madsen, Morten

doi:10.1039/d1tc01544c

Cited by 8 publications

(11 citation statements)

References 92 publications

(143 reference statements)

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“…Madsen et al. [ 63 ] used a combination of plasticizers and antioxidants to enhance mechanical stability. They designed AXcPDMs, a novel covalent combination of antioxidant astaxanthin (AX) with PDMS.…”

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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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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“…OSC 在光照下运行, 自由基和单线态氧都会造成器件衰减, 镍配合物能够有效地猝灭自由基, 显著减少受体分子在空气中的光漂白 [34,159] , 在活性层中加入紫外线吸收剂二苯酮可以有效减少活性层光损伤, 在 150 min 光照后, 加入二苯酮的 FTAZ:ITIC-Th 器件显示出比未添加和添加 DIO 的器件更好的稳定性 [160] . 受阻酚 [161][162] 、胡萝卜素及其衍生物能够有效地去除自由基和单线态氧 [163] , 在 PTB7:PCBM 基器件中加入 β-胡萝卜素(CB)和胡萝卜素衍生物 AXcPDMS 后, 器件在寿命测试中累计发电量能够提升 6 倍和 140% [164][165] .…”

Section: 界面反应unclassified

Research Progress in Degradation Mechanism of Organic Solar Cells

Liu¹,

Li²,

Jing³

et al. 2022

Acta Chimica Sinica

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During the last several years, with the emergence of non-fullerene Y-series star molecular acceptors, the power conversion efficiency of single-junction organic solar cells has exceeded 19%. However, the relatively poor stability of the devices under different operating conditions seriously restricts its commercialization. Therefore, more and more researches are focused on the causes of devices degradation of organic solar cells and how to improve the stability of organic solar cells (OSCs). OSCs have complex active layer materials and different device structure. It is still not clear about the performance and decay process of organic solar cells. Most of the previous reviews on OSC stability are based on external factors such as moisture, oxygen, light and heat, and lack of explanation of device degradation process. In this review, the literatures of OSCs device degradation in recent years are reviewed and several factors that cause performance degradation in OSCs devices are summarized. Firstly, the device performance attenuation caused by the change of active layer, the photooxidation reaction caused by chemical molecule changes, photochemical reaction, and device aging process, and the morphological changes in active layers caused by photothermal stresses and their effects on device performance are reviewed. Then, the influence of the changes at the interface and transporting layer degradation is introduced. Finally, the multi-directional strategies for improving the stability of OSCs are stated and how to improve the stability of organic solar cells is suggested.

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“…† When PEDOT:PSS was substituted for NF-WSe 2 as the HTL, a noticeable fall in the performance of the PEDOT:PSS device was plotted. Generally, the acidic nature of the PEDOT: PSS would generally corrode the ITO, attributed to the hygroscopicity, 50 however with bCar this could be a consequence of the electron transfer scavenging effect in PCDTBT:PC 71 BM blends, which minimizes the "burn-in" degradation generated from the acceptor. 16,35,51 On the contrary, devices with the NF-WSe 2 HTL show significantly improved stability, especially after 1000 h storage; these devices retain approximately 80% of the initial value.…”

Section: W (W-o Bond)mentioning

confidence: 99%

“…A higher η c also suggests reduced bimolecular recombination within the above device. 50 To further explore the photovoltaic applicability, PBDB-T: PC 71 BM + bCar devices were fabricated using NF-WSe 2 as the HTL (Fig. s11 †).…”

Section: W (W-o Bond)mentioning

confidence: 99%

Durable polymer solar cells produced by the encapsulation of a WSe₂ hole-transport layer and β-carotene as an active layer additive

Zheng

Miao

Xiao

et al. 2022

Inorg. Chem. Front.

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Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity

Abstract: Photochemical and mechanical stability are critical in the production and application of organic solar cells. While these factors can individually be improved using different additives, there is no example of...

Cited by 8 publications

References 92 publications

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

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

Research Progress in Degradation Mechanism of Organic Solar Cells

Durable polymer solar cells produced by the encapsulation of a WSe₂ hole-transport layer and β-carotene as an active layer additive

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Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity

Abstract: Photochemical and mechanical stability are critical in the production and application of organic solar cells. While these factors can individually be improved using different additives, there is no example of...

Cited by 8 publications

References 92 publications

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

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

Research Progress in Degradation Mechanism of Organic Solar Cells

Durable polymer solar cells produced by the encapsulation of a WSe2 hole-transport layer and β-carotene as an active layer additive

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Product

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Durable polymer solar cells produced by the encapsulation of a WSe₂ hole-transport layer and β-carotene as an active layer additive