Origin of the stabilization energy of perylene excimer as studied by fluorescence and near-IR transient absorption spectroscopy

2001 ◽  
Vol 145 (1-2) ◽  
pp. 23-34 ◽  
Author(s):  
Ryuzi Katoh ◽  
Subrata Sinha ◽  
Shigeo Murata ◽  
M Tachiya
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Stabilization Energy ◽  
Transient Absorption Spectroscopy ◽  
Near Ir

Charge delocalization of naphthalene cations formed in triad molecules studied by near-IR transient absorption spectroscopy

2003 ◽  
Vol 374 (1-2) ◽  
pp. 137-142 ◽  
Author(s):  
Hideo Ohkita ◽  
Toshiki Fushimi ◽  
Kunihiro Atsumi ◽  
Yusuke Fujita ◽  
Shinzaburo Ito ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Charge Delocalization ◽  
Near Ir

Ultrafast Transient Absorption Spectroscopy Investigations of Excited State Dynamics in SWNT/Polymer Composites

2004 ◽  
Vol 858 ◽  
Author(s):  
David J. Styers-Barnett ◽  
Steven P. Ellison ◽  
Cheol Park ◽  
Kristopher E. Wise ◽  
John M. Papanikolas
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Hot Electron ◽  
Plasmon Band ◽  
Near Ir ◽  
Spectral Shifts ◽  
Femtosecond Transient Absorption ◽  
Transient Spectra ◽  
Walled Carbon Nanotubes

ABSTRACTWavelength-resolved femtosecond transient absorption spectroscopy is used to follow the electronic dynamics of single-walled carbon nanotubes in polymers following visible and near IR photoexcitation. Electron-hole (e-h) pairs give rise to sharp features in the transient spectra that decay in amplitude and exhibit rapid spectral shifts. The decay reflects (e-h) recombination on both short (1.3 ps) and long (35 ps) time scales. Transient spectra also exhibit a broad photobleach at early times that arises from the cooling of a hot electron gas created via excitation at the red edge of a π-plasmon band.

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