Erb, T. ; Zhokhavets, U. ; Gobsch, G. ; Raleva, S. ; Stühn, B. ; Schilinsky, P. ; Waldauf, C. ; Brabec, C. J. (2005)
Correlation between structural and optical properties of composite polymer/fullerene films for organic solar cells.
In: Advanced Functional Materials, 15 (7)
doi: 10.1002/adfm.200400521
Article, Bibliographie
Abstract
We investigate thin poly(3-hexylthiophene-2,5-diyl)/[6,6]-phenyI C-61 butyric acid methyl ester (P3HT/PCBM) films, which are widely used as active layers in plastic solar cells. Their structural properties are studied by grazing-incidence X-ray diffraction (XRD). The size and the orientation of crystalline]P3HT nanodomains within the films are determined. PCBM crystallites are not detected in thin films by XRD. Upon annealing, the P3HT crystallinity increases, leading to an increase in the optical absorption and spectral photocurrent in the low-photon-energy region. As a consequence, the efficiency of P3HT/PCBM solar cells is significantly increased. A direct relation between efficiency and P3HT crystallinity is demonstrated.
| Item Type: | Article |
|---|---|
| Erschienen: | 2005 |
| Creators: | Erb, T. ; Zhokhavets, U. ; Gobsch, G. ; Raleva, S. ; Stühn, B. ; Schilinsky, P. ; Waldauf, C. ; Brabec, C. J. |
| Type of entry: | Bibliographie |
| Title: | Correlation between structural and optical properties of composite polymer/fullerene films for organic solar cells |
| Language: | English |
| Date: | July 2005 |
| Journal or Publication Title: | Advanced Functional Materials |
| Volume of the journal: | 15 |
| Issue Number: | 7 |
| DOI: | 10.1002/adfm.200400521 |
| Corresponding Links: | |
| Abstract: | We investigate thin poly(3-hexylthiophene-2,5-diyl)/[6,6]-phenyI C-61 butyric acid methyl ester (P3HT/PCBM) films, which are widely used as active layers in plastic solar cells. Their structural properties are studied by grazing-incidence X-ray diffraction (XRD). The size and the orientation of crystalline]P3HT nanodomains within the films are determined. PCBM crystallites are not detected in thin films by XRD. Upon annealing, the P3HT crystallinity increases, leading to an increase in the optical absorption and spectral photocurrent in the low-photon-energy region. As a consequence, the efficiency of P3HT/PCBM solar cells is significantly increased. A direct relation between efficiency and P3HT crystallinity is demonstrated. |
| Divisions: | 05 Department of Physics > Institute for condensed matter physics (2021 merged in Institute for Condensed Matter Physics) 05 Department of Physics |
| Date Deposited: | 27 Feb 2010 13:31 |
| Last Modified: | 05 Mar 2013 09:32 |
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