Ultrafast dynamics of excitations in conjugated polymers: A spectroscopic study

2001 ◽  
Vol 115 (9) ◽  
pp. 4339-4348 ◽  
Author(s):  
R. Chang ◽  
M. Hayashi ◽  
S. H. Lin ◽  
J.-H. Hsu ◽  
W. S. Fann
Keyword(s):  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Ultrafast Dynamics

Carbon Nanotube-Induced Planarization of Conjugated Polymers in Solution

2004 ◽  
Vol 858 ◽  
Author(s):  
Jian Chen ◽  
Rajagopal Ramasubramaniam ◽  
Haiying Liu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Surface Quality ◽  
Hybrid Materials ◽  
Conjugated Polymer ◽  
Visible Absorption ◽  
The Impact ◽  
Conformational Interaction

ABSTRACTThe understanding of the conformational interaction between conjugated polymers and carbon nanotubes in solution is essential to develop the applications of carbon nanotubes, particularly conjugated polymer-carbon nanotube hybrid materials. The visible absorption spectroscopic study shows that curved carbon nanotube surfaces can induce the planarization of individual conjugated polymers such as poly(p-phenyleneethynylene)s and poly(3-alkylthiophene)s in solution. The impact of nanotube surface quality on the interaction between carbon nanotubes and conjugated polymers is investigated.

scholarly journals Defining side chain successions in anthracene-based poly(arylene ethynylene)-alt-poly(phenylene vinylene)s: probing structure–property relationships

2019 ◽  
Vol 10 (39) ◽  
pp. 5339-5347
Author(s):  
Christoph Ulbricht ◽  
Nassima Bouguerra ◽  
Samuel Inack Ngi ◽  
Oliver Brüggemann ◽  
Daniel A. M. Egbe
Keyword(s):  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Side Chain ◽  
Phenylene Vinylene ◽  
Structure Property ◽  
Structure Property Relationships

A detailed spectroscopic study of nine conjugated polymers with various octyloxy/2-ethylhexyloxy side chain sequences prepared using optimized regio-selective synthetic pathways.

Ultrafast Spectroscopic Study of Donor–Acceptor Benzodithiophene Light Harvesting Organic Conjugated Polymers

2016 ◽  
Vol 120 (17) ◽  
pp. 9088-9096 ◽  
Author(s):  
Bradley Keller ◽  
Alan McLean ◽  
Bong-Gi Kim ◽  
Kyeongwoon Chung ◽  
Jinsang Kim ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Light Harvesting ◽  
Organic Conjugated Polymers ◽  
Donor Acceptor

Spectroscopic Study of Photophysical Change in Collapsed Coils of Conjugated Polymers:  Effects of Solvent and Temperature

2006 ◽  
Vol 39 (3) ◽  
pp. 1165-1172 ◽  
Author(s):  
Rakchart Traiphol ◽  
Patrapon Sanguansat ◽  
Toemsak Srikhirin ◽  
Teerakiat Kerdcharoen ◽  
Tanakorn Osotchan
Keyword(s):  
Conjugated Polymers ◽  
Spectroscopic Study

Ultrafast Dynamics in Aromatic Cation Based Ionic Liquids: A Femtosecond Raman-Induced Kerr Effect Spectroscopic Study

2016 ◽  
Vol 89 (9) ◽  
pp. 1106-1128 ◽  
Author(s):  
Hideaki Shirota ◽  
Shohei Kakinuma ◽  
Kotaro Takahashi ◽  
Akito Tago ◽  
Hocheon Jeong ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Spectroscopic Study ◽  
Kerr Effect ◽  
Ultrafast Dynamics

π-Stacking in Conjugated Polymers and Oligomers: A Structural and Spectroscopic Study

1998 ◽  
Vol 548 ◽  
Author(s):  
M. David Curtis ◽  
Wendy Blanda ◽  
Jeffrey K. Politis ◽  
Anthony H. Francis ◽  
Jihoon Lee ◽  
...  
Keyword(s):  
Fine Structure ◽  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Ground State ◽  
Solution Phase ◽  
Excitation Spectra ◽  
Aromatic Molecules ◽  
State Aggregation ◽  
Π Stacking ◽  
Pattern Characteristic

ABSTRACTRegioregular, alkyl-substituted poly(heteroaromatics) tend to crystallize in π-stacked structures as opposed to the herringbone pattern characteristic of non-substituted, planar aromatic molecules, e.g. sexithiophene. π-Stacking, favored by the crystallization of the sidechains, induces planarity in the conjugated backbone. The increased planarity causes a large (50-100 nm) shift in λmax (abs.) compared to the solution phase in which the backbone is twisted out of coplanarity, π-Stacking is a form of ground state aggregation that causes “fine structure” on the absorption peak. Excitation into the aggregate states rapidly leads to the formation of excimers as shown by the excitation spectra. In -stacked polymers, photoluminescence is almost entirely from the excimer states.

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