Femtosecond dynamics in organic thin films of fluoro-aluminium phthalocyanine

Z. Z. Ho; N. Peyghambarian

doi:10.1016/0009-2614(88)80284-7

Femtosecond dynamics in organic thin films of fluoro-aluminium phthalocyanine

Z. Z. Ho, N. Peyghambarian

Research output: Contribution to journal › Article › peer-review

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Abstract

Femtosecond laser pulses are employed to study the dynamics of the absorption spectra of fluoro-aluminium phthalocyanine polycrystalline thin films. Following excitation by 620 nm pulses into the first electronic transition a very rapid energy relaxation of the excitons is observed within the 55 fs duration of the pump pulse. Following this process two extremely fast decay routes lead to the recovery of the ground state: exciton-exciton annihilation with an intensity-dependent decay of 550 fs at power density of 1.2 GW/cm² and exciton-phonon coupling with a 4 ps decay time.

Original language	English (US)
Pages (from-to)	107-111
Number of pages	5
Journal	Chemical Physics Letters
Volume	148
Issue number	2-3
DOIs	https://doi.org/10.1016/0009-2614(88)80284-7
State	Published - Jul 8 1988

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Femtosecond dynamics in organic thin films of fluoro-aluminium phthalocyanine",

abstract = "Femtosecond laser pulses are employed to study the dynamics of the absorption spectra of fluoro-aluminium phthalocyanine polycrystalline thin films. Following excitation by 620 nm pulses into the first electronic transition a very rapid energy relaxation of the excitons is observed within the 55 fs duration of the pump pulse. Following this process two extremely fast decay routes lead to the recovery of the ground state: exciton-exciton annihilation with an intensity-dependent decay of 550 fs at power density of 1.2 GW/cm2 and exciton-phonon coupling with a 4 ps decay time.",

author = "Ho, {Z. Z.} and N. Peyghambarian",

note = "Funding Information: The authors would like to thank William Hetherington and Takayoshi Kobayashi for stimulating discussions and Neal Armstrong and Paul Lee for providing AlPc-F sample. The data shown in fig. 3 was obtained in Laboratoire de Optique Applique, ENSTA, France as a result of collaboration with A. Migus and M. Joffre. We appreciate support from OCC, and NATO (grant 86/0749 for travel).",

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doi = "10.1016/0009-2614(88)80284-7",

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T1 - Femtosecond dynamics in organic thin films of fluoro-aluminium phthalocyanine

AU - Ho, Z. Z.

AU - Peyghambarian, N.

N1 - Funding Information: The authors would like to thank William Hetherington and Takayoshi Kobayashi for stimulating discussions and Neal Armstrong and Paul Lee for providing AlPc-F sample. The data shown in fig. 3 was obtained in Laboratoire de Optique Applique, ENSTA, France as a result of collaboration with A. Migus and M. Joffre. We appreciate support from OCC, and NATO (grant 86/0749 for travel).

PY - 1988/7/8

Y1 - 1988/7/8

N2 - Femtosecond laser pulses are employed to study the dynamics of the absorption spectra of fluoro-aluminium phthalocyanine polycrystalline thin films. Following excitation by 620 nm pulses into the first electronic transition a very rapid energy relaxation of the excitons is observed within the 55 fs duration of the pump pulse. Following this process two extremely fast decay routes lead to the recovery of the ground state: exciton-exciton annihilation with an intensity-dependent decay of 550 fs at power density of 1.2 GW/cm2 and exciton-phonon coupling with a 4 ps decay time.

AB - Femtosecond laser pulses are employed to study the dynamics of the absorption spectra of fluoro-aluminium phthalocyanine polycrystalline thin films. Following excitation by 620 nm pulses into the first electronic transition a very rapid energy relaxation of the excitons is observed within the 55 fs duration of the pump pulse. Following this process two extremely fast decay routes lead to the recovery of the ground state: exciton-exciton annihilation with an intensity-dependent decay of 550 fs at power density of 1.2 GW/cm2 and exciton-phonon coupling with a 4 ps decay time.

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Femtosecond dynamics in organic thin films of fluoro-aluminium phthalocyanine

Abstract

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