Dendrite growth in annealed polymer blends for use in bulk heterojunction solar cells
Author(s): Akogwu, O; Akande, W; Tong, T; Soboyejo, W
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http://arks.princeton.edu/ark:/88435/pr1t282| Abstract: | This paper presents the evidence of growth of dendrites during the annealing of poly (3-hexylthiophene) and [6,6]-phenyl C61-butyric acid methyl ester (P3HT:PCBM) blends that are being explored for potential applications in bulk heterojunction polymer solar cells. These dendrites were observed in high resolution scanning electron microscopy to have morphologies that depend on the annealing temperature. Consistent with a recent eutectic phase diagram, the dendrites were not observed at 200 °C. The observations were explained by considering the effects of temperature on the kinetics of phase nucleation and growth in P3HT: PCBM blends. The implications of the results are also discussed for the stability of electrical properties in bulk heterojunction solar cells. |
| Publication Date: | 2011 |
| Citation: | Akogwu, Onobu, Wali Akande, Tiffany Tong, and Wole Soboyejo. "Dendrite growth in annealed polymer blends for use in bulk heterojunction solar cells." Journal of Applied Physics 110, no. 10 (2011): 103517. doi: 10.1063/1.3652858 |
| DOI: | doi:10.1063/1.3652858 |
| ISSN: | 0021-8979 |
| EISSN: | 1089-7550 |
| Pages: | 103517 |
| Type of Material: | Journal Article |
| Journal/Proceeding Title: | Journal of Applied Physics |
| Version: | Final published version. Article is made available in OAR by the publisher's permission or policy. |
| Notes: | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Akogwu, Onobu, Wali Akande, Tiffany Tong, and Wole Soboyejo. "Dendrite growth in annealed polymer blends for use in bulk heterojunction solar cells." Journal of Applied Physics 110, no. 10 (2011): 103517. and may be found at http://dx.doi.org/10.1063/1.3652858 |
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