Title

Transient Excited-State Absorption and Gain Spectroscopy of a Two-Photon Absorbing Probe with Efficient Superfluorescent Properties

Authors

Authors

K. D. Belfield; M. V. Bondar; A. R. Morales; X. L. Yue; G. Luchita;O. V. Przhonska

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Phys. Chem. C

Keywords

STIMULATED-EMISSION-DEPLETION; OPTICAL-DATA STORAGE; FLUORENE; DERIVATIVES; FLUORESCENCE MICROSCOPY; CHARGE-TRANSFER; SINGLET OXYGEN; FEMTOSECOND; DYNAMICS; CHROMOPHORES; RESOLUTION; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, ; Multidisciplinary

Abstract

The synthesis, linear photophysical properties, two-photon absorption (2PA), excited-state transient absorption, and gain spectroscopy of a new fluorene derivative tertbutyl 4,4'-(4,4' (1E,1'E)-2,2'-(9,9-bis(2-(2-ethoxyethoxy)ethyl)-9H-fluorene-2,7-diyl)bis(ethene-2,1-diyl)bis(4,1 phenylene)]dipiperazine-1-carboxylate (1) are reported. The steady-state linear absorption and fluorescence spectra along with excitation anisotropy, fluorescence lifetimes, and photochemical stability of 1 were investigated in a number of organic solvents at room temperature. The 2PA spectra of 1 with a maximum cross section of 300 GM were obtained with a 1-kHz femtosecond laser system using open-aperture Z-scan and two-photon-induced fluorescence methods. The transient excited-state absorption (ESA) and gain kinetics of 1 were investigated by a femtosecond pump probe methodology. Fast relaxation processes (similar to 1-2 ps) in the gain and ESA spectra of 1 were revealed in ACN solution, attributable to symmetry-breaking effects in the first excited state. Efficient superfluorescence properties of 1 were observed in a nonpolar solvent under femtosecond excitation. One- and two-photon fluorescence microscopy imaging of HCT 116 cells incubated with probe 1 was accomplished, suggesting the potential of this new probe in two-photon fluorescence microscopy bioimaging.

Journal Title

Journal of Physical Chemistry C

Volume

116

Issue/Number

20

Publication Date

1-1-2012

Document Type

Article

DOI Link

http://dx.doi.org/10.1021/jp302274v

Language

English

First Page

11261

Last Page

11271

WOS Identifier

WOS:000304338500054

ISSN

1932-7447

Recommended Citation

"Transient Excited-State Absorption and Gain Spectroscopy of a Two-Photon Absorbing Probe with Efficient Superfluorescent Properties" (2012). Faculty Bibliography 2010s. 2286.
https://stars.library.ucf.edu/facultybib2010/2286