An Ultrafast Transient Absorption Study of Charge Separation and Recombination Dynamics in CdSe QDs and Methyl Viologen: Dependence on Surface Stoichiometry

2018 ◽  
Vol 3 (9) ◽  
pp. 2675-2682 ◽  
Author(s):  
M. Chandra Sekhar ◽  
Sneha Paul ◽  
Apurba De ◽  
Anunay Samanta
Keyword(s):  
Charge Separation ◽  
Methyl Viologen ◽  
Transient Absorption ◽  
Absorption Study ◽  
Cdse Qds ◽  
Ultrafast Transient Absorption ◽  
Recombination Dynamics

Flavin Core as Electron Acceptor Component in a Zinc(II)-Phthalocyanine-Based Dyad

2008 ◽  
Vol 61 (4) ◽  
pp. 256 ◽  
Author(s):  
Andreas Gouloumis ◽  
G. M. Aminur Rahman ◽  
Julia Abel ◽  
Gema de la Torre ◽  
Purificación Vázquez ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ground State ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Significant Interaction ◽  
Transient Absorption ◽  
Cross Coupling ◽  
Ion Pair ◽  
Donor Acceptor ◽  
Recombination Dynamics

A zinc(ii)-phthalocyanine-flavin dyad has been synthesized by Heck-type cross-coupling between a flavin that bears a p-iodophenyl group and a phthalocyanine functionalized with a vinyl moiety. Electrochemical experiments reveal that no significant interaction occurs at the ground state between the two electroactive subunits. However, the occurrence of a photoinduced electron transfer in this donor–acceptor conjugate is observed in transient absorption experiments. Charge-separation (i.e., 4.0 × 1011 s–1) and charge-recombination dynamics in benzonitrile (2.2 × 1010 s–1) reveal a remarkable stabilization of the radical ion pair in this solvent.

A femtosecond transient absorption study of charge photogeneration and recombination dynamics in photovoltaic polymers with different side-chain linkages

Nanoscale ◽  
2016 ◽  
Vol 8 (43) ◽  
pp. 18390-18399
Author(s):  
Ning-Jiu Zhao ◽  
Yu-Wei Wang ◽  
Qian Liu ◽  
Zi-Hong Lin ◽  
Ran Liang ◽  
...  
Keyword(s):  
Transient Absorption ◽  
Side Chain ◽  
Absorption Study ◽  
Femtosecond Transient Absorption ◽  
Recombination Dynamics

Effect of Mutation on the Dissociation and Recombination Dynamics of CO in Transcriptional Regulator CooA:  A Picosecond Infrared Transient Absorption Study†

Biochemistry ◽  
2006 ◽  
Vol 45 (30) ◽  
pp. 9246-9253 ◽  
Author(s):  
Tieqiao Zhang ◽  
Igor V. Rubtsov ◽  
Hiroshi Nakajima ◽  
Shigetoshi Aono ◽  
Keitaro Yoshihara
Keyword(s):  
Transient Absorption ◽  
Transcriptional Regulator ◽  
Absorption Study ◽  
Recombination Dynamics

Charge-Transfer Dynamics at Ag/Ni-MOF/Cu2O heterostructure in Photoelectrochemical NH3 production

2021 ◽  
Author(s):  
Ying Liu ◽  
Jianmin Lu ◽  
Qianxiao Zhang ◽  
Yajie Bai ◽  
Xuliang Pang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Yield Rate ◽  
Ultrafast Transient Absorption ◽  
Charge Transfer Dynamics ◽  
Ultrafast Transient Absorption Spectroscopy

Decoration of Ag-ultrathin Ni-MOF onside Cu2O was firstly fabricated. The charge-transfer dynamics at heterostructure was in-depth revealed by ultrafast transient absorption spectroscopy. NH3 yield rate (4.63 μg h-1 cm-2) with...

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