Hierarchical Self-Assembly in Monoaxially Electrospun P3HT/PCBM Nanofibers

被引：10
|
作者：
Dillard, Caitlin [1 ]
Singhal, Richa [1 ]
Kalra, Vibha [1 ]
机构：
[1] Drexel Univ, Dept Chem & Biol Engn, Philadelphia, PA 19104 USA
来源：
MACROMOLECULAR MATERIALS AND ENGINEERING | 2015年 / 300卷 / 03期
基金：
美国国家科学基金会;
关键词：
donor-acceptor systems; hierarchical self-assembly; monoaxial electrospinning; nanofibers; transmission electron microscopy; POLYMER SOLAR-CELLS; ELECTRICAL-PROPERTIES; CARBON NANOFIBERS; CHARGE-TRANSPORT; PHASE-SEPARATION; THIN-FILMS; MORPHOLOGY; POLY(3-HEXYLTHIOPHENE); FABRICATION; P3HT;
D O I：
10.1002/mame.201400214
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report monoaxial electrospinning and self-assembly characterization of poly(3-hexylthiophene)/[6,6]-phenyl-C61-butyric acid methyl ester (P3HT/PCBM) nanofibers. Nanofibers were directly compared to films (as made and annealed) to understand the effects of extensional forces and high evaporation rate inherent to electrospinning on nanoscale structure. X-ray scattering shows electrospinning can achieve improved crystallinity and reduced length scale of P3HT and PCBM phases. Due to extensional flow, co-continuous phases form along the fiber axis, as evident in transmission electron microscopy. To our knowledge, this is the first study to investigate monoaxially-spun, pure P3HT/PCBM nanofibers, a facile processing method with the potential to transform the field of wearable photovoltaics.
引用
收藏
页码：320 / 327
页数：8
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