Highly polar chromophores in poled polymer films characterised by second harmonic generation

G. H. Cross; D. Healy; M. Szablewski; D. Bloor; M. Malagoli; T. Kogej; D. Beljonne; J. L. Brédas

doi:10.1016/S0009-2614(97)00160-7

Highly polar chromophores in poled polymer films characterised by second harmonic generation

G. H. Cross, D. Healy, M. Szablewski, D. Bloor, M. Malagoli, T. Kogej, D. Beljonne, J. L. Brédas

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

8 Scopus citations

Abstract

Evidence for exceptionally high dipole moments in a series of nonlinear optical chromophores doped into poly(methyl methacrylate) films has been found. The strength of the poling field/dipole interaction is measured directly from incidence angle dependence of the second harmonic (SH) intensity generated from corona poled films. Values of the dipolar orientation parameter, (cos θ), greater than 0.5 can be achieved for externally applied fields of only 50 MV m^-1. Quantum chemical calculations of the evolution of the dipole moments of the compounds versus local reaction field support the conclusion that extremely high dipole moments characterise these molecules.

Original language	English (US)
Pages (from-to)	36-42
Number of pages	7
Journal	Chemical Physics Letters
Volume	268
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(97)00160-7
State	Published - Apr 4 1997
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(97)00160-7

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@article{93a8c393f09c48a3943fd2204490e125,

title = "Highly polar chromophores in poled polymer films characterised by second harmonic generation",

abstract = "Evidence for exceptionally high dipole moments in a series of nonlinear optical chromophores doped into poly(methyl methacrylate) films has been found. The strength of the poling field/dipole interaction is measured directly from incidence angle dependence of the second harmonic (SH) intensity generated from corona poled films. Values of the dipolar orientation parameter, (cos θ), greater than 0.5 can be achieved for externally applied fields of only 50 MV m-1. Quantum chemical calculations of the evolution of the dipole moments of the compounds versus local reaction field support the conclusion that extremely high dipole moments characterise these molecules.",

author = "Cross, {G. H.} and D. Healy and M. Szablewski and D. Bloor and M. Malagoli and T. Kogej and D. Beljonne and Br{\'e}das, {J. L.}",

note = "Funding Information: We wish to thank P.R. Thomas for providing solution dipole moment measurements and the UK EPSRC for grants in support of this work (GR/K21382, GR/J68588) and for a research studentship to DH. This work was also supported by funds provided under the EU Human Capital and Mobility Programme, Research Network, 'Novel third-order nonlinear optical molecular materials'; CHRX-CT93-0334 (DG XII). The work in Mons is part funded by the Belgian Federal Government, 'P61e d'Attraction Interuniversitaire en Chimie Supramoleculaire et Catalyse', FNRS/FRFC, and an IBM Joint Study.",

year = "1997",

month = apr,

day = "4",

doi = "10.1016/S0009-2614(97)00160-7",

language = "English (US)",

volume = "268",

pages = "36--42",

journal = "Chemical Physics Letters",

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number = "1-2",

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TY - JOUR

T1 - Highly polar chromophores in poled polymer films characterised by second harmonic generation

AU - Cross, G. H.

AU - Healy, D.

AU - Szablewski, M.

AU - Bloor, D.

AU - Malagoli, M.

AU - Kogej, T.

AU - Beljonne, D.

AU - Brédas, J. L.

N1 - Funding Information: We wish to thank P.R. Thomas for providing solution dipole moment measurements and the UK EPSRC for grants in support of this work (GR/K21382, GR/J68588) and for a research studentship to DH. This work was also supported by funds provided under the EU Human Capital and Mobility Programme, Research Network, 'Novel third-order nonlinear optical molecular materials'; CHRX-CT93-0334 (DG XII). The work in Mons is part funded by the Belgian Federal Government, 'P61e d'Attraction Interuniversitaire en Chimie Supramoleculaire et Catalyse', FNRS/FRFC, and an IBM Joint Study.

PY - 1997/4/4

Y1 - 1997/4/4

N2 - Evidence for exceptionally high dipole moments in a series of nonlinear optical chromophores doped into poly(methyl methacrylate) films has been found. The strength of the poling field/dipole interaction is measured directly from incidence angle dependence of the second harmonic (SH) intensity generated from corona poled films. Values of the dipolar orientation parameter, (cos θ), greater than 0.5 can be achieved for externally applied fields of only 50 MV m-1. Quantum chemical calculations of the evolution of the dipole moments of the compounds versus local reaction field support the conclusion that extremely high dipole moments characterise these molecules.

AB - Evidence for exceptionally high dipole moments in a series of nonlinear optical chromophores doped into poly(methyl methacrylate) films has been found. The strength of the poling field/dipole interaction is measured directly from incidence angle dependence of the second harmonic (SH) intensity generated from corona poled films. Values of the dipolar orientation parameter, (cos θ), greater than 0.5 can be achieved for externally applied fields of only 50 MV m-1. Quantum chemical calculations of the evolution of the dipole moments of the compounds versus local reaction field support the conclusion that extremely high dipole moments characterise these molecules.

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DO - 10.1016/S0009-2614(97)00160-7

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SN - 0009-2614

VL - 268

SP - 36

EP - 42

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Highly polar chromophores in poled polymer films characterised by second harmonic generation

Abstract

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