太阳能电池的纳夫托迪提奥芬-纳夫托比斯提亚二醇共聚合物:化使聚合物骨干变平,并促进了效率
Itaru Osaka1, Takeshi Kakara, Noriko Takemura
1Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan. itaru.osaka@riken.jp
Journal of the American Chemical Society
|June 7, 2013
概括
使用基链功能化纳夫托迪烯共聚合物增强了溶解性,并促进了面对面的方向. 这导致了更好的电荷传输和高功率转换效率,在太阳能电池中高达8.2%.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 太阳能光伏发电是如何实现的
背景情况:
- 基于纳夫托迪提奥芬 (NDT) 和纳夫托比斯提亚 (NBT) 的共聚物是有机太阳能电池的有希望的材料.
- 实现高性能需要优化溶解度,电子结构和薄膜形态.
- 控制聚合物方向对于有效的电荷传输至关重要.
研究的目的:
- 调查合理功能化对NDT-NBT共聚物的影响.
- 为了提高溶解度和保持电子性质.
- 提高有机太阳能电池中的电荷传输和功率转换效率.
主要方法:
- 合成具有不同链长度的NDT-NBT共聚物.
- 可溶性测试和表征.
- 紫外线Vis吸收和循环电压测量用于电子结构分析.
- 通过X射线衍射 (XRD) 来确定聚合物的方向.
- 单环有机太阳能电池的制造和测试.
主要成果:
- 对NDT核心的合理功能化提高了共聚合物溶解度,而不会改变电子结构.
- 线性基链的引入引发了对面聚合物导向的重大转变.
- 这种面对面的方向促进了增强的充电运输.
- 优化的聚合物在传统的单节太阳能电池中实现了高功率转换效率 (PCEs),高达8.2%.
结论:
- 链功能化是一种有效的策略,可以提高NDT-NBT共聚物中的溶解性和控制形态.
- 取得的面向方向有利于有机太阳能电池中的电荷传输.
- 这些发现有助于开发高性能有机光伏材料.
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