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相关概念视频

Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Bioplastics01:27

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...

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"扭曲"的聚合物捐赠器使高性能内在伸展的有机太阳能电池成为可能

Di Zhang1, Zhi Wang1, Junfeng Liu1

  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.

Angewandte Chemie (International ed. in English)
|August 30, 2025
PubMed
概括

研究人员为内在可拉伸的有机太阳能电池 (is-OSCs) 开发了新的伸缩型聚合物. 这些材料提高了功率转换效率 (PCE) 和机械强度,从而实现了先进的可穿戴发电.

关键词:
基侧链内部可伸缩的有机太阳能电池机械延展性扭曲的聚合物供体

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科学领域:

  • 材料科学
  • 有机电子
  • 聚合物化学

背景情况:

  • 本质上可伸缩的有机太阳能电池 (is-OSC) 是可穿戴式发电的前景.
  • 目前高效的有机太阳能电池使用了刚性骨架,限制了伸展性,并创造了性能与机械的权衡.

研究的目的:

  • 开发可伸缩的聚合物,提高光伏性能和IS-OSC的机械强度.
  • 调查将3 - 丁烯 - 烯 (ThBO) 单元纳入PM6骨干对材料性能和设备性能的影响.

主要方法:

  • 合成了一系列PM-BOX%的聚合物,含有不同数量的ThBO单位 (X=5,10,20).
  • 将 ThBO 单元嵌入到 PM6 骨干中以诱导骨干扭曲并增加无序的内容.
  • 使用开发的聚物和BTP-eC9接受器制造和特征化IS-OSC设备.

主要成果:

  • PM-BO10%:BTP-eC9装置实现了18.3%的功率转换效率和23.8%的裂纹发生应变.
  • 通过增加骨干扭曲和促进应力消散,优化的聚合物增强了机械伸展性.
  • PM- BO10%:BTP- eC9 is- OSCs显示出优异的PCE保留率 (在31. 0%应变时达到80%),在应变时达到14. 2%的PCE.

结论:

  • 扭曲的聚合物设计策略成功地改善了PCE和IS-OSC的伸展性.
  • 这种方法为新一代可穿戴电子产品创造了高效和强大的聚合物供应商提供了新的途径.
  • 开发的材料在灵活和可伸缩的发电中具有很大的实际应用潜力.