通过表面启动的库马达催化剂-转移聚凝制备的"毛"的多3-基) 颗粒
Volodymyr Senkovskyy1, Roman Tkachov, Tetyana Beryozkina
1Leibniz-Institut für Polymerforschung Dresden e.V., Germany.
Journal of the American Chemical Society
|October 29, 2009
概括
我们开发了一种新方法,使用表面启动的多重凝结来制造聚合物-无机纳米混合体. 这种技术产生了具有增强光学性能的"毛"纳米粒子,改善了像太阳能电池这样的有机电子.
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
- 纳米技术 纳米技术
- 有机电子 有机电子
背景情况:
- 合聚合物对于有机电子非常重要,但它们的特性可以通过聚合和形态学来限制.
- 开发可控的方法来设计聚合物-无机纳米混合体对于先进的材料设计至关重要.
- 表面启动的聚合提供了一条控制纳米级聚合物接种和特性的途径.
研究的目的:
- 引入一种新的链增长表面启动的库马达催化剂转移聚凝法 (SI-KCTP),用于制造纳米结构的聚合物-无机混合物.
- 为了合成"毛"纳米粒子与末端结的多3-基烯 (P3HT) 链.
- 研究密集聚合物接种对有机太阳能电池光学特性和性能的影响.
主要方法:
- 从纳米粒子表面利用表面启动的库马达催化剂转移聚凝 (SI-KCTP).
- 采用由双酸配体支持的Ni催化剂,用于控制P3HT生长.
- 描述了所产生的毛的纳米粒子的光学特性 (吸收,光).
主要成果:
- 通过SI-KCTP成功地通过端绑定P3HT链合成毛的纳米粒子.
- 由于平面化和聚合,观察到光学属性的显著变化,包括红移光谱和振动微型结构.
- 通过调整支纳米颗粒的表面曲率来证明这些效应是可调节的.
- 在批量异质连接太阳能电池中成功应用了毛的P3HT纳米粒子.
结论:
- SI-KCTP为工程纳米结构聚合物-无机混合物提供了一个新的范式,具有可调节的光学特性.
- 密集的P3HT链接接种导致链际相互作用和改变光物理,即使在良好的溶剂中.
- 开发的毛的纳米粒子显示出有望提高有机电子设备,特别是太阳能电池的性能.
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