Three-photon absorption enhancement in a symmetrical charge transfer fluorene derivative

Florencio E. Hernández; Kevin D. Belfield; Ion Cohanoschi

doi:10.1016/j.cplett.2004.04.051

Three-photon absorption enhancement in a symmetrical charge transfer fluorene derivative

Florencio E. Hernández
, Kevin D. Belfield
, Ion Cohanoschi

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

69 Scopus citations

Abstract

In this letter we report the three-photon absorption-induced upconversion fluorescence emission and the three-photon absorption cross-section of two fluorene derivatives with D-π-D (9,9-didecyl-2,7-bis-(N,N-diphenylamino) fluorene) and D-π-A ((7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl) diphenylamine) structural motifs. The three-photon absorption cross-section of the D-π-D analog (σ₃^′=82×10 ^-78 cm⁶s²photon^-2) is 2.2 times greater than that of its D-π-A counterpart (σ₃ ^′=37×10^-78 cm⁶s ²photon^-2), showing that symmetric charge transfer enhances 3PA. The three-photon-excitation of these two compounds in hexane solution (9.8×10^-3 M) was accomplished with a tunable OPG pumped by picosecond laser pulses. The three-photon absorption coefficients were measured using an open aperture Z-scan technique.

Original language	English (US)
Pages (from-to)	22-26
Number of pages	5
Journal	Chemical Physics Letters
Volume	391
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2004.04.051
State	Published - Jun 11 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2004.04.051

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@article{17fe0dc60099408b92bf8e0c7485ef09,

title = "Three-photon absorption enhancement in a symmetrical charge transfer fluorene derivative",

abstract = "In this letter we report the three-photon absorption-induced upconversion fluorescence emission and the three-photon absorption cross-section of two fluorene derivatives with D-π-D (9,9-didecyl-2,7-bis-(N,N-diphenylamino) fluorene) and D-π-A ((7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl) diphenylamine) structural motifs. The three-photon absorption cross-section of the D-π-D analog (σ3′=82×10 -78 cm6s2photon-2) is 2.2 times greater than that of its D-π-A counterpart (σ3 ′=37×10-78 cm6s 2photon-2), showing that symmetric charge transfer enhances 3PA. The three-photon-excitation of these two compounds in hexane solution (9.8×10-3 M) was accomplished with a tunable OPG pumped by picosecond laser pulses. The three-photon absorption coefficients were measured using an open aperture Z-scan technique.",

author = "Hern{\'a}ndez, \{Florencio E.\} and Belfield, \{Kevin D.\} and Ion Cohanoschi",

note = "Funding Information: This research was supported by start up funds provided to FEH by the Department of Chemistry, University of Central Florida. KDB would like to acknowledge the National Science Foundation (ECS-9970078, ECS-0217932, DMR-9975773), the Research Corporation, and the donors of The Petroleum Research Fund of the American Chemical Society for partial support of this work. ",

year = "2004",

month = jun,

day = "11",

doi = "10.1016/j.cplett.2004.04.051",

language = "English (US)",

volume = "391",

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journal = "Chemical Physics Letters",

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T1 - Three-photon absorption enhancement in a symmetrical charge transfer fluorene derivative

AU - Hernández, Florencio E.

AU - Belfield, Kevin D.

AU - Cohanoschi, Ion

N1 - Funding Information: This research was supported by start up funds provided to FEH by the Department of Chemistry, University of Central Florida. KDB would like to acknowledge the National Science Foundation (ECS-9970078, ECS-0217932, DMR-9975773), the Research Corporation, and the donors of The Petroleum Research Fund of the American Chemical Society for partial support of this work.

PY - 2004/6/11

Y1 - 2004/6/11

N2 - In this letter we report the three-photon absorption-induced upconversion fluorescence emission and the three-photon absorption cross-section of two fluorene derivatives with D-π-D (9,9-didecyl-2,7-bis-(N,N-diphenylamino) fluorene) and D-π-A ((7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl) diphenylamine) structural motifs. The three-photon absorption cross-section of the D-π-D analog (σ3′=82×10 -78 cm6s2photon-2) is 2.2 times greater than that of its D-π-A counterpart (σ3 ′=37×10-78 cm6s 2photon-2), showing that symmetric charge transfer enhances 3PA. The three-photon-excitation of these two compounds in hexane solution (9.8×10-3 M) was accomplished with a tunable OPG pumped by picosecond laser pulses. The three-photon absorption coefficients were measured using an open aperture Z-scan technique.

AB - In this letter we report the three-photon absorption-induced upconversion fluorescence emission and the three-photon absorption cross-section of two fluorene derivatives with D-π-D (9,9-didecyl-2,7-bis-(N,N-diphenylamino) fluorene) and D-π-A ((7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl) diphenylamine) structural motifs. The three-photon absorption cross-section of the D-π-D analog (σ3′=82×10 -78 cm6s2photon-2) is 2.2 times greater than that of its D-π-A counterpart (σ3 ′=37×10-78 cm6s 2photon-2), showing that symmetric charge transfer enhances 3PA. The three-photon-excitation of these two compounds in hexane solution (9.8×10-3 M) was accomplished with a tunable OPG pumped by picosecond laser pulses. The three-photon absorption coefficients were measured using an open aperture Z-scan technique.

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DO - 10.1016/j.cplett.2004.04.051

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JO - Chemical Physics Letters

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Three-photon absorption enhancement in a symmetrical charge transfer fluorene derivative

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