Synthesis and Self-Organization of Gold Nanoparticles Into Superlattices From Ctab Reverse Micelles

Lin, Jun; Zhou, Weichang; O’Connor, Charmian J.

doi:10.1142/9789812793805_0051

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These studies have revealed two different types of solvent motion: an ultrafast time component attributed to an inertial solvent response (<100 fs) and a slower diffusive component (hundreds of femtoseconds to nanoseconds) attributed to the diffusive solvent motion in response to the probe's new charge distribution. Perhaps the most common method to measure solvation dynamics utilizes time-resolved fluorescence-upconversion to monitor the time-dependent emission spectrum of a fluorescent probe …”

Section: Introductionmentioning

confidence: 99%

Dynamics of Polar Solvation in Quaternary Microemulsions

2003

View full text Add to dashboard Cite

Steady-state spectroscopy and time-resolved solvation dynamics have been used to investigate the effects the addition of alkanol has on the location of coumarin 343 (C343) in cetyltrimethylammonium bromide (CTAB)/1-pentanol/cyclohexane/water, CTAB/1-heptanol/cyclohexane/water, and sodium dodecyl sulfate/1-heptanol/cyclohexane/water reverse micelles. Steady-state spectroscopy showed that the probe molecule is not sensitive to alkanol chain lengths or water loading. Instead, C343 is sensitive to the surfactant used to form the reverse micelles. Solvation dynamics measurements utilizing ultrafast time-resolved fluorescence-upconversion spectroscopy revealed two solvation reorganization times regardless of the micellar system studied or hydration level. A hundreds of picosecond time component is attributed to collective motion of the interface. Time-zero analysis reveals a substantial relaxation component occurring on the femtosecond time scale.

show abstract

Section: Introductionmentioning

confidence: 99%