Skip to main content Accessibility help
×
Home

Optical and Morphological Characterization of PTCDI-C13

  • Marco Stella (a1), Fernando Villar (a2), Fredy Enrique Rojas (a3), Mónica Della Pirriera (a4), Cristobal Voz (a5), Joaquim Puigdollers (a6), José Miguel Asensi (a7), Jordi Andreu (a8) and Joan Bertomeu (a9)...

Abstract

The organic photovoltaic technology has developed much in the last few years thanks to the optimization of the solar cell geometry and, specially, to the research for new performing materials. Nevertheless, much work has still to be done in order to better know the real mechanisms regulating the function of such novel class of semiconductors. The study of thin-film micro-structure, and the influence of the deposition parameters on it, is an important issue in order to obtain best optical and electrical properties. Thermal evaporation in high-vacuum chambers is the more suitable deposition technique to obtain organic thin-films with well organize molecular structure. Deposition parameters such as the substrate temperature and deposition rate may have some important effect on the molecules ordering. In this paper the effects of substrate temperature on structural and optical properties have been studied for N,N′-ditridecyl perylene diimide (PTCDI-C13) thin-films. Four samples have been deposited at 30, 60, 90 and 120°C substrate temperature and their absorption has been investigated by photothermal deflection spectroscopy (PDS) and transmittance spectroscopy. Moreover, simulations of the transmittance spectra have been calculated in order to obtain the optical constants n and k. Finally atomic force microscopy (AFM) has been employed to analyze the superficial morphology of the thin-films.

Copyright

References

Hide All
1. Brabec, C.J. Sariciftci, N.S. and Hummelen, J.C. Adv. Funct. Mater. 11, 15 (2001).
2. Nunzi, J.M. C.R. Physique 3, 523 (2002).
3. Hoppe, H. and Sariciftci, N.S. J. Mater. Res. 19, 1924 (2004).
4. Peumans, P. Yakimov, A. and Forrest, S. R. J. Appl. Phys. 93, 3693 (2003).
5. Heutz, S. Ferguson, A.J. Rumbles, G. and Jones, T.S. Organic Electronics 3, 119 (2002).
6. Nollau, A. Hoffmann, M. Fritz, T. and Leo, K. Thin Solid Films 368, 130 (2000).
7. Malenfant, P.R.L. Dimitrakopoulos, C.D. Gelorme, J.D. Kosbar, L.L. Graham, T.O. Curioni, A and Andreoni, Wanda, Appl. Phys. Lett. 80 2517 (2002).
8. Horowitz, G. Kouki, F. Spearman, P. Fichou, D. Nogues, C. Pan, X. and Garnier, F. Adv. Mater. 8, 242 (1996).
9. Tatemichi, S. Ichikawa, M. Koyama, T. and Taniguchi, Y. Appl. Phys. Lett. 89, 112108 (2006).
10. El-Nahass, M. M., Bahabri, F.S. and Al-Harbi, R., Egypt. J. Sol. 24, 11 (2001).
11. Varghese, S. Iype, M. Mathew, E.J. and Menon, C.S. Materials Letters 56, 1078 (2002).
12. Shalimova, K. V.. Semiconductors physics., Ed. , Mir (1975) p. 268.
13. Street, R. A.. Hydrogenated amorphous silicon., Cambridge Solid State Science Series (1991) p. 88.
14. Centurioni, E. Appl. Opt. 44, 7532 (2005)
15. Hoppe, H. Arnold, N. Sariciftci, N. S. and Meissner, D. Sol. Energy Mater. Sol. Cells 80, 105 (2003)
16. Born, M.. Principles of optics., Ed. Cambridge University (2003) chapter 2.
17. Martil, I. and Diaz, G. Gonzalez, Am. J. Phys. 60, 83 (1992).

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed