生光诱导结晶驱动自组装用于快速准备半导体纳米纤维
Suyong Shin1, Florian Menk2, Youngjin Kim3
1Department of Chemistry , Seoul National University , Seoul , 08826 , Korea.
Journal of the American Chemical Society
|May 2, 2018
概括
研究人员使用光诱导自组合开发了光合聚合物纳米纤维. 这种方法提供了对纳米结构大小和均性的精确控制,使电子和光学设备的新应用成为可能.
科学领域:
- 材料科学
- 聚合物化学
- 纳米技术
背景情况:
- 结合的聚合物纳米结构具有独特的电子和光学特性.
- 精确控制这些纳米结构的尺寸和统一性仍然是一个重大挑战.
- 现有的自组装策略在实现狭窄分散方面存在局限性.
研究的目的:
- 展示光结合块共聚物的制备.
- 通过光诱导结晶驱动的自我组装实现快速和可控的纳米纤维形成.
- 探索生物的自我组装,以创建具有可控维度的各种纳米结构.
主要方法:
- 结合块共聚物的一次性聚合.
- 使用 cis-to-trans 光异构的光诱导结晶驱动自组装.
- 用于控制纳米纤维,漫画和渐变漫画的种子生长.
主要成果:
- 在几分钟内迅速形成光聚合物纳米纤维.
- 在纳米纤维中实现了优异的长度控制和狭窄的尺寸分布.
- 展示了生产ABA三重块漫画和渐变漫画的活体自组.
- 通过光控制种子生长,允许重复激活和关闭.
结论:
- 开发了一种新的合成定义良好的聚合物纳米结构的方法.
- 光诱导结晶驱动的自组装提供了对纳米结构形态和尺寸的精确控制.
- 这种可控制光的活体自组装为动态和响应性纳米材料开辟了可能性.
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