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Lateral and Vertical Phase Separation Control of Thin-film Structures for Photovoltaics

Published online by Cambridge University Press:  21 March 2011

A. C. Arias ,
J. D. MacKenzie ,
N. Corcoran  and
R. H. Friend
A. C. Arias
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK
J. D. MacKenzie
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK
N. Corcoran
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK
R. H. Friend
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK
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Abstract

Investigations on microscopic and photovoltaic properties of polyfluorene blends are presented here. The length scale of lateral phase separation is manipulated by control of solvent evaporation conditions. Photoluminescence efficiency measurements show that charge transfer is more effective in blends phase separated on the nanometer scale. Vertically segregated structures are obtained by a combination of solution viscosity and spin coating conditions. The external quantum efficiency of photovoltaic devices fabricated with vertically segregated blend is found to be 4 times higher than that of devices made with laterally segregated blends.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 665: Symposium C – Electronic, Optical and Optoelectronic Polymers and Oligomers , 2001 , C5.42
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Friend, R. H., Greenham, N. C., in Handbook of Conducting Polymers Skotheim, T. A., Elsenbaumer, R. L., Reynolds, J. R., Eds. (Marcel Dekker, New York, 1998).Google Scholar
2. Marks, R. N., Halls, J. J. M., Bradley, D. D. C., Friend, R. H., Holmes, A. B., J. Phys.: Cond. Matter 6, 1379 (1994).Google Scholar
3. Brédas, J., Cornil, J., Heeger, A. J., Adv. Mater. 8, 447 (1996).Google Scholar
4. Tang, C. W., J. Appl. Phys. 48, 183 (1986).Google Scholar
5. Karl, N., Bauer, A., Holzäpfel, J., Marktanner, J., Möbius, M., Stölzle, F., Mol. Cryst. Liq. Cryst. 252, 243 (1994).Google Scholar
6. O'Regan, B., Grätzel, M., Nature 353, 737 (1991).Google Scholar
7. Halls, J. J. M., Walsh, C. A., Greenham, N. C., Marseglia, E. A., Friend, R. H., Moratti, S. C., Holmes, A. B., Nature 376, 498 (1995).Google Scholar
8. Yu, G., Heeger, A. J., J. Appl. Phys. 78, 4510 (1995).Google Scholar
9. Yu, G., Gao, J., Hummelen, C. J., Wudl, F., Heeger, A. J., Science 270, 1789 (1995).Google Scholar
10. Roman, L. S., Andersson, M. R., Yohannes, T., Inganäs, O., Adv. Mater. 9, 1164 (1997).Google Scholar
11. Paul, D. R., Newman, S., Polymer blends, Vol. 1, 1st ed. (Academic Press, INC, New York, 1978).Google Scholar
12. Utracki, L. A., Polymer Alloys and Blends: thermodynamics and rheology (Hanser, New York, 1989).Google Scholar
13. Porter, D. A., Easterling, K. E., Phase transformations in metals and alloys, Vol. 1, 1st ed. (Chapman and Hall, London, 1981).Google Scholar
14. Reich, S., Phys. Lett. 114A, 90 (1986).Google Scholar
15. Sperling, L. H., Introduction to Physical Polymer Science, 2nd ed. (New York, 1992).Google Scholar
16. Halls, J. J. M., Arias, A. C., MacKenzie, J. D., Inbasekaran, M., Woo, E. P., Friend, R. H., Adv. Mater. 12, 498 (2000).Google Scholar
17. He, Y., Gong, S., Hattori, R., Kanicki, J., Appl. Phys. Lett. 74, 2265 (1999).Google Scholar
18. Redecker, M., Bradley, D. D. C., Inbasekaran, M., Wu, W. W., Woo, E. P., Adv. Mater. 11, 241 (1999).Google Scholar
19. CRC Handbook of Chemistry Physics; Vol., edited by Weast, R. C., Lide, D. R. (CRC Press, Boca Raton, Florida, 1990).Google Scholar
20. Mello, J. C. de, Wittmann, H. F., Friend, R. H., Adv. Mater. 9, 230 (1997).Google Scholar
21. Arias, A. C., MacKenzie, J. D., Stevenson, R., Halls, J. J. M., Inbasekaran, M., Woo, E. P., Richards, D., Friend, R. H., Macromolecules, 34, 6005 (2001).Google Scholar
22. Stevenson, R., Milner, R. G., Richards, D., Arias, A. C., MacKenzie, J. D., Halls, J. J. M., Friend, R. H., Kang, D.-J., Blamire, M., J. Microscop.,202, 433 (2001).Google Scholar
23. Stevenson, R., Arias, A. C., Ramsdale, C., MacKenzie, J. D., Richards, D., Appl. Phys. Lett. 79, 2178 (2001).Google Scholar
24. Jones, R. A. L., Norton, L. J., Kramer, E. J., Bates, F. S., Wiltzius, P., Phys. Rev. Lett. 66, 1326 (1991).Google Scholar
25. Granström, M., Petritsch, K., Arias, A. C., Lux, A., Andersson, M. R., Friend, R. H., Nature 395, 257 (1998).Google Scholar