β-1,3-Glucan polysaccharides as novel one-dimensional hosts for DNA/RNA, conjugated polymers and nanoparticles

2005 ◽  
pp. 4383 ◽  
Author(s):  
Kazuo Sakurai ◽  
Kazuya Uezu ◽  
Munenori Numata ◽  
Teruaki Hasegawa ◽  
Chun Li ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
One Dimensional

Electronic structure studies of conducting polymers by electron energy-loss spectroscopy

1996 ◽  
Vol 54 ◽  
pp. 160-161
Author(s):  
J. Fink
Keyword(s):  
Electronic Structure ◽  
Conducting Polymers ◽  
Conjugated Polymers ◽  
Electron Acceptors ◽  
Electron Donors ◽  
Light Emitting ◽  
One Dimensional ◽  
New Class ◽  
Electrical Conductivities ◽  
Electron Energy Loss

Conducting polymers comprises a new class of materials achieving electrical conductivities which rival those of the best metals. The parent compounds (conjugated polymers) are quasi-one-dimensional semiconductors. These polymers can be doped by electron acceptors or electron donors. The prototype of these materials is polyacetylene (PA). There are various other conjugated polymers such as polyparaphenylene, polyphenylenevinylene, polypoyrrole or polythiophene. The doped systems, i.e. the conducting polymers, have intersting potential technological applications such as replacement of conventional metals in electronic shielding and antistatic equipment, rechargable batteries, and flexible light emitting diodes.Although these systems have been investigated almost 20 years, the electronic structure of the doped metallic systems is not clear and even the reason for the gap in undoped semiconducting systems is under discussion.

Particle-in-a-box model of one-dimensional excitons in conjugated polymers

2000 ◽  
Vol 61 (15) ◽  
pp. 10504-10510 ◽  
Author(s):  
Thomas G. Pedersen ◽  
Per M. Johansen ◽  
Henrik C. Pedersen
Keyword(s):  
Conjugated Polymers ◽  
Box Model ◽  
One Dimensional

Optical properties of one-dimensional semiconductors and conjugated polymers

1977 ◽  
Vol 15 (2) ◽  
pp. 909-925 ◽  
Author(s):  
C. Cojan ◽  
G. P. Agrawal ◽  
C. Flytzanis
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
One Dimensional

Spin polarization study on one-dimensional ferromagnetic metal/conjugated polymers

2005 ◽  
Vol 477 (1-2) ◽  
pp. 212-215 ◽  
Author(s):  
Ji-yong Fu ◽  
Jun-feng Ren ◽  
De-sheng Liu ◽  
Shi-jie Xie
Keyword(s):  
Conjugated Polymers ◽  
Spin Polarization ◽  
Ferromagnetic Metal ◽  
One Dimensional ◽  
Polarization Study

Effects of Φ-Stacking on the Absorption and Emission of Light by Conjugated Polymers and Oligomers

1999 ◽  
Vol 598 ◽  
Author(s):  
M. David Curtis ◽  
Amy Koren ◽  
Jeff W. Kampf
Keyword(s):  
Conjugated Polymers ◽  
Crystal Structures ◽  
Spectral Properties ◽  
Molecular Packing ◽  
Side Chains ◽  
Absorption And Emission ◽  
One Dimensional ◽  
Exciton Splitting

ABSTRACTWe have determined the crystal structures of regioregular HH-TT oligomers with a variety of side chains, including hydroxy-bearing side chains capable of H-bonding. The H-bonding orders the molecular packing into infinite 2-D sheets of Φ-stacks. In these H-bonded sheets, the Φ-stacks are insulated from each other by the aliphatic side chains and form one-dimensional “wires”. In contrast, the structures of similar oligomers that do not have H-bonded side-chains feature a structure in which neighboring Φ-stacks in are in contact (“shorted wires”). The effects of these differing molecular arrangements on the spectral properties and exciton splitting are discussed.

Nonadiabatic dynamics of injected holes in conjugated polymers

2017 ◽  
Vol 19 (15) ◽  
pp. 10000-10008 ◽  
Author(s):  
Luiz Antonio Ribeiro Junior ◽  
Wiliam Ferreira da Cunha
Keyword(s):  
Conjugated Polymers ◽  
Tight Binding ◽  
Nonadiabatic Dynamics ◽  
One Dimensional ◽  
Polaron Formation

The dynamics of injected holes in short transient times that precede polaron formation is numerically studied in the framework of a tight-binding electron–phonon interacting approach aimed at describing organic one-dimensional lattices.

Enhancement of Optical Third Order Nonlinearity in Main-Chain Oriented Polythiophenes

1991 ◽  
Vol 244 ◽  
Author(s):  
Haruki Okawa ◽  
Tatsuo Wada ◽  
Hiroyuki Sasabe
Keyword(s):  
Conjugated Polymers ◽  
Main Chain ◽  
Nonlinear Susceptibility ◽  
Third Order ◽  
Polymer Backbone ◽  
Third Harmonic ◽  
One Dimensional ◽  
Nonlinear Responses ◽  
Large Enhancement ◽  
Third Order Nonlinear Susceptibility

ABSTRACTThe third order nonlinear responses for soluble one-dimensional ϕ-conjugated polymers, poly(3-alkylthiophene)s were investigated. Uniaxial stretching of the polymer film was carried out to align the polymer backbone. The stretched film showed large dichroism and crystallinity. Third order nonlinear susceptibility, χ(3)1111 of the stretched film was determined by optical third harmonic generation. A large enhancement of χ(3) due to the main chain alignment was observed.

Sign in / Sign up

Export Citation Format

Share Document