'Columnlike' Structure of the Cross-Sectional Morphology of Bulk Heterojunction Materials
| Autor: | Shinuk Cho, Ji Sun Moon, Alan J. Heeger, Jae-Kwan Lee, Jiyun Byun |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Length scale
Materials science Morphology (linguistics) Macromolecular Substances Polymers Surface Properties Mechanical Engineering Electric Conductivity Molecular Conformation Analytical chemistry Bioengineering General Chemistry Condensed Matter Physics Phase Transition Polymer solar cell Nanostructures Models Chemical Transmission electron microscopy Materials Testing Nanotechnology Computer Simulation General Materials Science Particle Size Crystallization Spatial fourier transform |
| Zdroj: | Nano Letters. 9:230-234 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl802821h |
| Popis: | The cross-sectional morphology of the bulk heterojunction (BHJ) films comprising regio-regular poly(3-hexylthiophene) (rrP3HT) and [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) was observed with transmission electron microscopy (TEM). The cross-sectional TEM images of the BHJ film provide information on the pathways for charge transport through the film thickness. The length scale of the phase separation was obtained from spatial Fourier transform analysis of the TEM images and from calculations of the autocorrelation function. |
| Databáze: | OpenAIRE |
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