Document Detail


A comparative study of electronic properties of disordered conjugated polymers.
MedLine Citation:
PMID:  23376937     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The comparison of hole density of states (DOS) and hole mobilities of several organic polymer based systems was performed to gain insight into the main factors that determine the electrical properties of conjugated polymers. The DOS and the mobility of the systems under investigation were evaluated using an atomistic multiscale procedure. The results suggest that the irregularities in the shape of the polymer chains increase the diagonal disorder, while alkyl side chains act as spacers that reduce the diagonal disorder which originates from long range electrostatic interactions. Intrachain electronic coupling in relatively ordered polymers narrows the tail of the DOS, while in less ordered polymers it represents the additional component of disorder and widens the tail of the DOS. The width of the DOS tail was confirmed to be an important factor that determines the activation energy for charge carrier transport. However, it is not the only factor since the system with a smaller width of the DOS tail can have a larger activation energy due to, for example, smaller wave function overlap between transport states.
Authors:
Nenad Vukmirović
Related Documents :
15743247 - The complete t-->v,r energy conversion in three-body collisions within the hard sphere ...
18499037 - Influence of charge state and sodium cationization on the electron detachment dissociat...
18352467 - Initial state dependence in multielectron threshold ionization of atoms.
19492367 - Photocatalytic redox reactions for in-source peptide fragmentation.
11580537 - Anisotropic disorder in high-mobility 2d heterostructures and its correlation to electr...
16526797 - Ring contraction of bridgehead sultams by photoinduced di-pi-methane rearrangement.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-4
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Scientific Computing Laboratory, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia. nenad.vukmirovic@ipb.ac.rs.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Hyper conserved elements in vertebrate mRNA 3'-UTRs reveal a translational network of RNA-binding pr...
Next Document:  Percolated pore networks of oxygen plasma-activated multi-walled carbon nanotubes for fast response,...