Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping

Details Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping

1996-05-15

arxiv.org/abs/cond-mat/9605093v1

Physics

Condensed Matter

10 pages, REVTEX file (4 figures available on request)

Scientific paper

Electronic structures of undoped and doped cyclic polythiophene (PT) are studied using modified $\sigma$-bond compressibility model. Cyclic PT doped with odd number of bipolarons creates an aromatic polyene backbone containing (4$n$+2) $\pi$-electrons and the system is driven towards the quinoid form. Consequently, we find an insulator-metal transition for dopant concentration $\geq$ 14 mol $\%$ and a $\sim$ 0.8 eV redshift in Fermi energy at 30 mol$\%$. For even number of bipolarons, we propose here that the form having two singly occupied degenerate orbitals will be stable in a sufficiently large cyclic PT.

Affiliated with

Also associated with

No associations

Rating

Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the electronic structure of cyclic polythiophene upon bipolaron doping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-667886