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A femtosecond study of excitation wavelength dependence of solvation dynamics in a PEO-PPO-PEO triblock copolymer micelle
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10.1063/1.2197495
/content/aip/journal/jcp/124/20/10.1063/1.2197495
http://aip.metastore.ingenta.com/content/aip/journal/jcp/124/20/10.1063/1.2197495

Figures

Image of FIG. 1.
FIG. 1.

Absorption spectra of C480 in 1% (w∕v) aqueous Pluronic P123 solution.

Image of FIG. 2.
FIG. 2.

Emission spectra of C480 (a)–(c) in P123 micelle for ; (a) , (b) , (c) , and (d) in water (⋯⋯) for .

Image of FIG. 3.
FIG. 3.

Plot of emission maximum of C480 in 1% (w∕v) aqueous Pluronic P123 solution as a function of excitation wavelength.

Image of FIG. 4.
FIG. 4.

Fluorescence decays of C480 in 1% (w∕v) aqueous Pluronic P123 solution at (i) , (ii) , and (iii) in picosecond regime.

Image of FIG. 5.
FIG. 5.

Femtosecond transients of C480 in 1% (w∕v) aqueous Pluronic P123 solution at (i) , (ii) , and (iii) .

Image of FIG. 6.
FIG. 6.

Time resolved emission spectra of C480 in 1% (w∕v) aqueous Pluronic P123 solution at (∎), (엯), (▴), (▿), and (×).

Image of FIG. 7.
FIG. 7.

Complete decay of response function of C480 in 1% (w∕v) aqueous Pluronic P123 solution for (▵), (●), and (◻). The points denote the actual values of and the solid line denotes the best fit. Initial portion of the decay is shown in the inset.

Image of FIG. 8.
FIG. 8.

Fluorescence anisotropy decay of C480 along with the fitted curve in 1% (w∕v) aqueous Pluronic P123 solution at .

Image of Scheme 1.
Scheme 1.

Schematic representation of (A) P123 micelle and (B) coumarin 480 (C480).

Tables

Generic image for table
Table I.

dependence of steady state emission spectra of C480 at .

Generic image for table
Table II.

Decay parameters of of C480 in P123 micelle in water at different excitation wavelengths at .

Generic image for table
Table III.

Parameters of anisotropy decay of C480 (at ) in 1% (w∕v) aqueous Pluronic P123 solution at different excitation wavelengths at .

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/content/aip/journal/jcp/124/20/10.1063/1.2197495
2006-05-22
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A femtosecond study of excitation wavelength dependence of solvation dynamics in a PEO-PPO-PEO triblock copolymer micelle
http://aip.metastore.ingenta.com/content/aip/journal/jcp/124/20/10.1063/1.2197495
10.1063/1.2197495
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