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Rapid solidificatio...
Rapid solidification for green-solvent-processed large-area organic solar modules with >16% efficiency
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- Zhang, Ben (författare)
- Soochow Univ, Peoples R China
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- Chen, Weijie (författare)
- Soochow Univ, Peoples R China
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- Chen, Haiyang (författare)
- Soochow Univ, Peoples R China
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visa fler...
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- Zeng, Guang (författare)
- Soochow Univ, Peoples R China
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- Zhang, Rui (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Li, Hongxiang (författare)
- Sichuan Univ, Peoples R China
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- Wang, Yunfei (författare)
- Univ Southern Mississippi, MS 39406 USA
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- Gu, Xiaodan (författare)
- Univ Southern Mississippi, MS 39406 USA
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- Sun, Weiwei (författare)
- Soochow Univ, Peoples R China
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- Gu, Hao (författare)
- Soochow Univ, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Li, Yaowen (författare)
- Soochow Univ, Peoples R China
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- Li, Yongfang (författare)
- Soochow Univ, Peoples R China; Chinese Acad Sci, Peoples R China
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: Energy & Environmental Science. - : ROYAL SOC CHEMISTRY. - 1754-5692 .- 1754-5706.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Enabling green-solvent-processed large-area organic solar cells (OSCs) is of great significance to their industrialization. However, precisely controlling the temperature-dependent fluid mechanics and evaporation behavior of green solvents with high-boiling points is challenging. Controlling these parameters is essential to prevent the non-uniform distribution of active layer components and severe molecule aggregation, which collectively degrade the power conversion efficiency (PCE) of large-scale devices. In this study, we revealed that the temperature gradient distribution across a wet film is the root of the notorious Marangoni effect, which leads to the formation of a severely non-uniform active layer on a large scale. Thus, a rapid solidification strategy was proposed to accelerate the evaporation of toluene, a green solvent, at room temperature. This strategy simultaneously inhibits the Marangoni effect and suppresses molecular aggregation in the wet film, allowing the formation of a nano-scale phase separation active layer with uniform morphology. The resultant toluene-processed 15.64-cm2 large-area OSC module achieves an outstanding PCE of 16.03% (certified: 15.69%), which represents the highest reported PCE of green-solvent-processed OSC modules. Notably, this strategy also exhibits a weak scale dependence on the PCE, and we successfully achieved a state-of-the-art PCE of 14.45% for a 72.00-cm2 OSC module. A rapid solidification strategy was developed for simultaneously avoiding the Marangoni effect and suppressing molecular aggregation. The resultant 15.64 cm2 large-area OSC module exhibited a record power conversion efficiency of 16.03%.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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- art (ämneskategori)
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Zhang, Ben
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Chen, Weijie
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Chen, Haiyang
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Zeng, Guang
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Zhang, Rui
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Li, Hongxiang
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visa fler...
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Wang, Yunfei
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Gu, Xiaodan
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Sun, Weiwei
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Gu, Hao
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Gao, Feng
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Li, Yaowen
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Li, Yongfang
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visa färre...
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