Title: Monitoring the 3D Nanostructures of Bulk Heterojunction Polymer Solar Cells Using Confocal Lifetime Imaging
Authors: Huang, Jen-Hsien
Chien, Fan-Ching
Chen, Peilin
Ho, Kuo-Chuan
Chu, Chih-Wei
Department of Photonics
Issue Date: 1-Mar-2010
Abstract: In this study, the exciton lifetime images within the photoactive layers of poly(3-hexylthiophene) (P3HT) kind [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are revealed by confocal optical microscopy combined with the fluorescence module. The images reveal that the active layers during slow solvent evaporation provide 3D pathways for charge transport and the concentration gradient through the film which reflects the better cell performance. This technique offers a great help to investigate the 3D optical-physical property without destroying the blends.
URI: http://dx.doi.org/10.1021/ac901992c
ISSN: 0003-2700
DOI: 10.1021/ac901992c
Volume: 82
Issue: 5
Begin Page: 1669
End Page: 1673
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