Abstract

We investigate high-quality evaporated dye layers of N, N′-dimethylperylene-3,4:9,10-bis-discarboximide of varying thicknesses, using temperature-dependent luminescence. Layers with a nominal thickness much less than a monolayer show monomer emission similar to that of dilute solutions. With increasing layer thickness, the luminescence is dominated by excimer transitions. The excimer linewidth decreases markedly with decreasing temperature. We show that the aggregation of molecules can be controlled by variation of the surface roughness.

© 1996 Optical Society of America

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  1. J. Tanaka, Bull. Chem. Soc. Jpn. 36, 1237 (1963).
    [CrossRef]
  2. J. Tanaka, Bull. Chem. Soc. Jpn. 47, 2376 (1974).
    [CrossRef]
  3. E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
    [CrossRef]
  4. M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
    [CrossRef]
  5. J. B. Birks, Photophysics of Aromatic MoleculesWiley Monographs in Chemical Physics, J. B. Birks, ed. (Wiley, New York, 1970), pp. 301–371.
  6. V. Gomez, “Zeitaufgeloesle Floureszenzspektroskopie,” Diploma thesis (University of Stuttgart, Stuttgart, Germany, 1994).
  7. V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.
  8. H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
    [CrossRef]
  9. B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
    [CrossRef]
  10. K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
    [CrossRef]
  11. L. R. Williams, K. A. Nelson, AIP Conf. Proc. 172, 599 (1988).
    [CrossRef]

1996 (1)

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

1988 (1)

L. R. Williams, K. A. Nelson, AIP Conf. Proc. 172, 599 (1988).
[CrossRef]

1985 (1)

B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
[CrossRef]

1982 (1)

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

1978 (2)

E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
[CrossRef]

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

1974 (1)

J. Tanaka, Bull. Chem. Soc. Jpn. 47, 2376 (1974).
[CrossRef]

1963 (1)

J. Tanaka, Bull. Chem. Soc. Jpn. 36, 1237 (1963).
[CrossRef]

Auweter, H.

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

Birks, J. B.

J. B. Birks, Photophysics of Aromatic MoleculesWiley Monographs in Chemical Physics, J. B. Birks, ed. (Wiley, New York, 1970), pp. 301–371.

Cohen, M. D.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Furukawa, M.

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

Gomez, V.

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

V. Gomez, “Zeitaufgeloesle Floureszenzspektroskopie,” Diploma thesis (University of Stuttgart, Stuttgart, Germany, 1994).

Haberkorn, R.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Huler, E.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Kinder, J.

E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
[CrossRef]

Kunze, B.

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

Leonhardt, M.

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

Ludmer, Z.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Matsui, A.

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

Michel-Beyerle, M. E.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
[CrossRef]

Mizuno, K.

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

Nelson, K. A.

L. R. Williams, K. A. Nelson, AIP Conf. Proc. 172, 599 (1988).
[CrossRef]

Port, H.

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
[CrossRef]

Rabinovich, D.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Ramer, D.

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

Sharon, R.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Tamai, N.

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

Tanaka, J.

J. Tanaka, Bull. Chem. Soc. Jpn. 47, 2376 (1974).
[CrossRef]

J. Tanaka, Bull. Chem. Soc. Jpn. 36, 1237 (1963).
[CrossRef]

von Freydorf, E.

E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
[CrossRef]

Walker, B.

B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
[CrossRef]

Warshel, A.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Williams, L. R.

L. R. Williams, K. A. Nelson, AIP Conf. Proc. 172, 599 (1988).
[CrossRef]

Wolf, H. C.

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
[CrossRef]

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

Yakhot, V.

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

Yamazaki, I.

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

AIP Conf. Proc. (1)

L. R. Williams, K. A. Nelson, AIP Conf. Proc. 172, 599 (1988).
[CrossRef]

Bull. Chem. Soc. Jpn. (2)

J. Tanaka, Bull. Chem. Soc. Jpn. 36, 1237 (1963).
[CrossRef]

J. Tanaka, Bull. Chem. Soc. Jpn. 47, 2376 (1974).
[CrossRef]

Chem. Phys. (3)

E. von Freydorf, J. Kinder, M. E. Michel-Beyerle, Chem. Phys. 27, 199 (1978).
[CrossRef]

M. D. Cohen, R. Haberkorn, E. Huler, Z. Ludmer, M. E. Michel-Beyerle, D. Rabinovich, R. Sharon, A. Warshel, V. Yakhot, Chem. Phys. 27, 211 (1978).
[CrossRef]

B. Walker, H. Port, H. C. Wolf, Chem. Phys. 92, 177 (1985).
[CrossRef]

Chem. Phys. Lett. (1)

H. Auweter, D. Ramer, B. Kunze, H. C. Wolf, Chem. Phys. Lett. 85, 325 (1982).
[CrossRef]

Verh. Dtsch. Ges. Phys. Vl (1)

V. Gomez, M. Leonhardt, H. Port, H. C. Wolf, Verh. Dtsch. Ges. Phys. Vl 31, 2143 (1996), abstract CP14.7.

Other (3)

K. Mizuno, M. Furukawa, A. Matsui, N. Tamai, I. Yamazaki, in Ultrafast Phenomena VI: Proceedings of the 6th International Conference, T. Yajima, K. Yoshihara, C. B. Harris, S. Shionoya, eds. (Springer, Tokyo, 1988), pp. 492–494.
[CrossRef]

J. B. Birks, Photophysics of Aromatic MoleculesWiley Monographs in Chemical Physics, J. B. Birks, ed. (Wiley, New York, 1970), pp. 301–371.

V. Gomez, “Zeitaufgeloesle Floureszenzspektroskopie,” Diploma thesis (University of Stuttgart, Stuttgart, Germany, 1994).

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Figures (2)

Fig. 1
Fig. 1

Stationary luminescence spectra of MePTDCI thin films: (a) 230 molecules/100 nm2, (b) 70 molecules/100 nm2, (c) 20 molecules/100 nm2. Excitation wavelength 488 nm, excitation intensity 1 W/cm2. The increase in monomer emission accompanied by a corresponding decrease in excimer emission with decreasing concentration is clearly observed. The dashed curve in (c) shows the emission spectrum of the dye in chloroform solution.

Fig. 2
Fig. 2

Effect of surface roughness on the luminescence of MePTDCI thin films. The rougher surface inhibits the formation of aggregates by reducing thermal motion of the dye molecules. Films upon such a surface consequently exhibit stronger monomer and weaker excimer luminescence than films upon a pure quartz substrate.

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