Hostname: page-component-7b7567c8c-2n9c9 Total loading time: 0 Render date: 2026-11-15T20:42:23.862Z Has data issue: false hasContentIssue false
  • English
  • Français

Double-Excitation Dynamics in m-LPPP probed with sub-20 fs Time Resolution

Published online by Cambridge University Press:  15 February 2011

C. Gadermaier,
G. Cerullo,
C. Manzoni,
U. Scherf,
E.J.W. List and
G. Lanzani
C. Gadermaier
Affiliation:
Christian-Doppler Laboratory Advanced Functional Materials, Inst. of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, and Inst. of Nanostructured Materials and Photonics, Franz-Pichler-Str. 30, 8160 Weiz, Austria
G. Cerullo
Affiliation:
National Laboratory for Ultrafast and Ultraintense Optical Science –INFM, Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
C. Manzoni
Affiliation:
National Laboratory for Ultrafast and Ultraintense Optical Science –INFM, Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
U. Scherf
Affiliation:
Department of Chemistry, BUGH Wuppertal, Gauss-Str. 20 D-42097 Wuppertal, Germany.
E.J.W. List
Affiliation:
Christian-Doppler Laboratory Advanced Functional Materials, Inst. of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, and Inst. of Nanostructured Materials and Photonics, Franz-Pichler-Str. 30, 8160 Weiz, Austria
G. Lanzani
Affiliation:
National Laboratory for Ultrafast and Ultraintense Optical Science –INFM, Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
Get access

Abstract

In a novel modification of transient differential transmission spectroscopy, the first excited state S1 is reexcited via a second laser pulse towards a higher lying state Sn. The dynamics of the relaxation of this state Sn as well as the states created from Sn are revealed by a broad-band probe pulse.

We find that the charge carrier generation efficiency from Sn is higher compared to S1. The push and probe durations below 20 fs enable the temporal resolution of the ultrafast relaxation of the Sn state and enables us to identify the two main contributions to enhanced charge generation from Sn, energy migration towards sites of high dissociation probability, and exciton dissociation during vibrational relaxation.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 771: Symposium L – Organic and Polymeric Materials and Devices , 2003, L5.6
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

[1] Frolov, S.V., Liess, M., Lane, P.A., Gellermann, W., Vardeny, Z.V., Ozaki, M., and Yoshino, K., Phys. Rev. Lett. 78 (1997), 4285.Google Scholar
[2] Frolov, S.V., Bao, Z., Wohlgenannt, M. and Vardeny, Z.V., Phys. Rev. Lett. 85 (2000), 2196.Google Scholar
[3] Köhler, A., dos Santos, D.A., Beljonne, D., Shuai, Z., Brédas, J.L., Holmes, A.B., Kraus, A., Müllen, K., and Friend, R.H., Nature 392 (1998), 903.Google Scholar
[4] Albota, M., et al., Science 281 (1998), 1653.Google Scholar
[5] Maniloff, E.S., Klimov, V.I., and McBranch, D.W., Phys. Rev. B 56 (1997), 1876.Google Scholar
[6] Stevens, M.A., Silva, C., Russell, D.M., and Friend, R.H., Phys. Rev. B 63 (2001), 165213.Google Scholar
[7] Gadermaier, C., Cerullo, G., Sansone, G., Scherf, U., Leising, G., and Lanzani, G., Phys. Rev. Lett. 89 (2002), 117402.Google Scholar
[8] Scherf, U., Müllen, K., Makromol. Chem. Rapid Commun. 12 (1991), 489.Google Scholar
[9] List, E.J.W., Creely, C., Schulte, N., Schlüter, A.D., Scherf, U., Müllen, K., Graupner, W., and Leising, G., Chem Phys. Lett. 325 (2000), 132.Google Scholar
[10]Reed, M. K., Steiner-Shepard, M. K., Armas, M. S., and Negus, D. K., J. Opt. Soc. Am. B 12 (1995), 2229.Google Scholar
[11] Kärtner, F. X., Matuschek, N., Schibli, T., and Keller, U., Heine, C. H. and Morf, R., Haus, H. A., Scheuer, V., Tilsch, M., and Tschudi, T., Opt. Lett. 22 (1997), 831.Google Scholar
[12] Graupner, W., Leising, G., Lanzani, G., Nisoli, M., Silvestri, S. De, and Scherf, U., Phys. Rev. Lett 76 (1996), 847.Google Scholar