本质上是可拉伸的有机热电聚合物,通过结合环结合断裂器使其成为可能
Chi-Chun Tseng1, Kuang-Chieh Wang2, Po-Shen Lin2
1Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
Small (Weinheim an der Bergstrasse, Germany)
|May 11, 2024
概括
研究人员开发了一种新的可伸缩聚合物,用于自动供电的电子产品. 这种材料结合了优良的热电特性和超过100%的伸展性,标志着可穿戴技术的突破.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 热电学是一种热电学.
背景情况:
- 有机热电聚合物正在进步,但在可穿戴电子产品的单一材料中实现热电性和伸展性仍然是一个挑战.
- 现有的材料往往会牺牲一种特性,以换取另一种特性,这限制了它们在下一代自动供电设备中的应用.
研究的目的:
- 设计一种高晶度的基于二甲基 (DPP) 的聚合物,具有内在的伸展性.
- 为了创建一个单一的聚合物材料,既表现出优良的热电特性和高机械灵活性,用于可穿戴应用.
主要方法:
- 使用六环二丁[2,3-b]烯 (DITT) 单元,采用了一种新的"结合式断裂器"分子工程概念.
- 通过聚合DPP单元与DITT合破解剂来合成捐赠者-接受者随机共聚合物.
- 控制DPP/DITT单体的比例,以优化晶体和无形区域之间的平衡.
主要成果:
- DITT30共聚合物实现了最佳的晶体/形态平衡,在FeCl3化后产生12.5μW m-1 K-2的功率系数 (PF).
- 该材料表现出异常的伸展性,能够承受超过100%的应变.
- 添加剂的DITT30薄膜表现出极好的机械耐力,在50%的应变下经过200次拉伸周期后,保留了80%的PF.
结论:
- 这项研究成功地创造了一种内在可拉伸的聚合物,具有出色的热电性能.
- "结合式断路器"方法为开发自动供电可穿戴电子产品的先进材料提供了一个可行的策略.
- 开发的聚合物代表了在可拉伸热电领域的开创性成就.
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