Systematic characterization of excited states in π -conjugated polymers

M. Chandross, Y. Shimoi, Sumitendra Mazumdar

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Exact finite chain calculations within a diagrammatic exciton basis give pictorial descriptions of all excited states of π-conjugated polymers. In linear chain polymers the 1Bu is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mAg, a two-photon state that plays a strong role in nonlinear optics, is a correlated charge-transfer state. The singlet-singlet states occur higher in energy and split into bound biexcitons and a continuum of free two-exciton states.

Original languageEnglish (US)
Pages (from-to)85-90
Number of pages6
JournalChemical Physics Letters
Volume280
Issue number1-2
StatePublished - Nov 28 1997

Fingerprint

Conjugated polymers
Excited states
excitons
Charge transfer
polymers
Photons
charge transfer
excitation
Nonlinear optics
nonlinear optics
photons
Polymers
continuums
LDS 751
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Systematic characterization of excited states in π -conjugated polymers. / Chandross, M.; Shimoi, Y.; Mazumdar, Sumitendra.

In: Chemical Physics Letters, Vol. 280, No. 1-2, 28.11.1997, p. 85-90.

Research output: Contribution to journalArticle

@article{ffce1a93591e47f08946a7828a83db8f,
title = "Systematic characterization of excited states in π -conjugated polymers",
abstract = "Exact finite chain calculations within a diagrammatic exciton basis give pictorial descriptions of all excited states of π-conjugated polymers. In linear chain polymers the 1Bu is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mAg, a two-photon state that plays a strong role in nonlinear optics, is a correlated charge-transfer state. The singlet-singlet states occur higher in energy and split into bound biexcitons and a continuum of free two-exciton states.",
author = "M. Chandross and Y. Shimoi and Sumitendra Mazumdar",
year = "1997",
month = "11",
day = "28",
language = "English (US)",
volume = "280",
pages = "85--90",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Systematic characterization of excited states in π -conjugated polymers

AU - Chandross, M.

AU - Shimoi, Y.

AU - Mazumdar, Sumitendra

PY - 1997/11/28

Y1 - 1997/11/28

N2 - Exact finite chain calculations within a diagrammatic exciton basis give pictorial descriptions of all excited states of π-conjugated polymers. In linear chain polymers the 1Bu is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mAg, a two-photon state that plays a strong role in nonlinear optics, is a correlated charge-transfer state. The singlet-singlet states occur higher in energy and split into bound biexcitons and a continuum of free two-exciton states.

AB - Exact finite chain calculations within a diagrammatic exciton basis give pictorial descriptions of all excited states of π-conjugated polymers. In linear chain polymers the 1Bu is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mAg, a two-photon state that plays a strong role in nonlinear optics, is a correlated charge-transfer state. The singlet-singlet states occur higher in energy and split into bound biexcitons and a continuum of free two-exciton states.

UR - http://www.scopus.com/inward/record.url?scp=0038075625&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038075625&partnerID=8YFLogxK

M3 - Article

VL - 280

SP - 85

EP - 90

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 1-2

ER -