Two-photon absorption properties of new fluorene-based singlet oxygen photosensitizers

Kevin D. Belfield; Mykhailo v. Bondar; Florencio E. Hernandez; Artëm E. Masunov; Ivan A. Mikhailov; Alma R. Morales; Olga v. Przhonska; Sheng Yao

doi:10.1021/jp8102832

Two-photon absorption properties of new fluorene-based singlet oxygen photosensitizers

Kevin D. Belfield, Mykhailo v. Bondar, Florencio E. Hernandez, Artëm E. Masunov, Ivan A. Mikhailov, Alma R. Morales, Olga v. Przhonska, Sheng Yao

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

48 Scopus citations

Abstract

The degenerate two-photon absorption (2PA) spectra of several fluorene-based photosensitizers (PS) in solution were obtained over a broad spectral range (460-880 nm) by open aperture Z-scan and two-photon fluorescence methods under either picosecond or femtosecond excitation, respectively. A maximum 2PA cross section of ca. 300 GM was observed for the photosensitizers containing a benzothiazole substituent in the fluorenyl 7-position. The electronic structures and 2PA properties of these PS were analyzed using a time-dependent density functional theory method, resulting in reasonably good agreement between experimental and theoretical data.

Original language	English (US)
Pages (from-to)	4706-4711
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	11
DOIs	https://doi.org/10.1021/jp8102832
State	Published - Mar 19 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp8102832

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title = "Two-photon absorption properties of new fluorene-based singlet oxygen photosensitizers",

abstract = "The degenerate two-photon absorption (2PA) spectra of several fluorene-based photosensitizers (PS) in solution were obtained over a broad spectral range (460-880 nm) by open aperture Z-scan and two-photon fluorescence methods under either picosecond or femtosecond excitation, respectively. A maximum 2PA cross section of ca. 300 GM was observed for the photosensitizers containing a benzothiazole substituent in the fluorenyl 7-position. The electronic structures and 2PA properties of these PS were analyzed using a time-dependent density functional theory method, resulting in reasonably good agreement between experimental and theoretical data.",

author = "Belfield, {Kevin D.} and Bondar, {Mykhailo v.} and Hernandez, {Florencio E.} and Masunov, {Art{\"e}m E.} and Mikhailov, {Ivan A.} and Morales, {Alma R.} and Przhonska, {Olga v.} and Sheng Yao",

year = "2009",

month = mar,

day = "19",

doi = "10.1021/jp8102832",

language = "English (US)",

volume = "113",

pages = "4706--4711",

journal = "Journal of Physical Chemistry C",

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TY - JOUR

T1 - Two-photon absorption properties of new fluorene-based singlet oxygen photosensitizers

AU - Belfield, Kevin D.

AU - Bondar, Mykhailo v.

AU - Hernandez, Florencio E.

AU - Masunov, Artëm E.

AU - Mikhailov, Ivan A.

AU - Morales, Alma R.

AU - Przhonska, Olga v.

AU - Yao, Sheng

PY - 2009/3/19

Y1 - 2009/3/19

N2 - The degenerate two-photon absorption (2PA) spectra of several fluorene-based photosensitizers (PS) in solution were obtained over a broad spectral range (460-880 nm) by open aperture Z-scan and two-photon fluorescence methods under either picosecond or femtosecond excitation, respectively. A maximum 2PA cross section of ca. 300 GM was observed for the photosensitizers containing a benzothiazole substituent in the fluorenyl 7-position. The electronic structures and 2PA properties of these PS were analyzed using a time-dependent density functional theory method, resulting in reasonably good agreement between experimental and theoretical data.

AB - The degenerate two-photon absorption (2PA) spectra of several fluorene-based photosensitizers (PS) in solution were obtained over a broad spectral range (460-880 nm) by open aperture Z-scan and two-photon fluorescence methods under either picosecond or femtosecond excitation, respectively. A maximum 2PA cross section of ca. 300 GM was observed for the photosensitizers containing a benzothiazole substituent in the fluorenyl 7-position. The electronic structures and 2PA properties of these PS were analyzed using a time-dependent density functional theory method, resulting in reasonably good agreement between experimental and theoretical data.

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 11

ER -

Two-photon absorption properties of new fluorene-based singlet oxygen photosensitizers

Abstract

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