Systematic characterization of excited states in π -conjugated polymers

M. Chandross; Y. Shimoi; S. Mazumdar

doi:10.1016/S0009-2614(97)01065-8

Systematic characterization of excited states in π -conjugated polymers

M. Chandross
, Y. Shimoi
, S. Mazumdar

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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 1B_u is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mA_g, 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 language	English (US)
Pages (from-to)	85-90
Number of pages	6
Journal	Chemical Physics Letters
Volume	280
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(97)01065-8
State	Published - Nov 28 1997

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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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 S. Mazumdar",

note = "Funding Information: The authors acknowledge support from the NSF (ECS-9408810), the AFOSR and the ONR through the MURI center (CAMP) at the University of Arizona. ",

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doi = "10.1016/S0009-2614(97)01065-8",

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

AU - Chandross, M.

AU - Shimoi, Y.

AU - Mazumdar, S.

N1 - Funding Information: The authors acknowledge support from the NSF (ECS-9408810), the AFOSR and the ONR through the MURI center (CAMP) at the University of Arizona.

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.

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UR - https://www.scopus.com/pages/publications/0038075625#tab=citedBy

U2 - 10.1016/S0009-2614(97)01065-8

DO - 10.1016/S0009-2614(97)01065-8

M3 - Article

AN - SCOPUS:0038075625

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VL - 280

SP - 85

EP - 90

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Systematic characterization of excited states in π -conjugated polymers

Abstract

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