Journal article
Hierarchical Self‐Assembly in Monoaxially Electrospun P3HT/PCBM Nanofibers
Macromolecular materials and engineering, v 300(3), pp 320-327
Mar 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
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.
P3HT/PCBM nanofibers are fabricated by monoaxial electrospinning and are shown to exhibit promising morphologies for organic solar cells compared to solution‐cast films. X‐ray scattering in the small angle regime shows that nanofibers have a smaller domain spacing; wide angle shows improved crystallinity. Interdigitated pathways 20–30 nm aligned along the fiber axis are observed with transmission electron micrographs of microtomed fiber sections.
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Details
- Title
- Hierarchical Self‐Assembly in Monoaxially Electrospun P3HT/PCBM Nanofibers
- Creators
- Caitlin Dillard - Department of Chemical and Biological EngineeringDrexel University3141Chestnut StreetPhiladelphiaPA19104USARicha Singhal - Department of Chemical and Biological EngineeringDrexel University3141Chestnut StreetPhiladelphiaPA19104USAVibha Kalra - Drexel University
- Publication Details
- Macromolecular materials and engineering, v 300(3), pp 320-327
- Publisher
- Wiley
- Number of pages
- 8
- Grant note
- National Science Foundation (CMMI‐1144376)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000351654000007
- Scopus ID
- 2-s2.0-84924322627
- Other Identifier
- 991019167709204721
UN Sustainable Development Goals (SDGs)
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary
- Polymer Science