Improving Solar Energy Harvesting by Self-Assembled Porphyrin-fullerene Complexes Through UV-Vis/Near-IR Transient Absorption Spectroscopy

2013 ◽  
Author(s):  
Julie Kho ◽  
Ali Hosseini ◽  
Peter Boyd ◽  
Cather Simpson
Keyword(s):  
Energy Harvesting ◽  
Solar Energy ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Near Ir ◽  
Solar Energy Harvesting ◽  
Fullerene Complexes ◽  
Self Assembled

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.

scholarly journals Acid-triggering of light-induced charge-separation in hybrid organic/inorganic molecular photoactive dyads for harnessing solar energy

2021 ◽  
Author(s):  
Elisabetta Benazzi ◽  
Joshua Karlsson ◽  
Youssef Ben M'Barek ◽  
Pavel Chabera ◽  
Sébastien Blanchard ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solar Energy ◽  
Absorption Spectroscopy ◽  
Charge Separation ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Induced Charge ◽  
Covalently Linked

H+ modulated charge-transfer in photoexcited covalently linked W and Mo Keggin-bodipy conjugates is demonstrated using transient absorption spectroscopy and photoluminescence. Adding acid switches on (W) or accelerates (Mo) charge separation.

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