Experimental and computational analysis of the nonlinear optical responses of styrylquinoline-functionalized polymers for optoelectronic applications
Abstract
Incorporating photoactive fragments into polymers is a key strategy for designing nextgeneration photochromic materials. Here, new methacrylic polymers containing styrylquinoline fragments were successfully synthesized and characterized. We investigated their nonlinear optical (NLO) properties in thin films, focusing on secondand third-harmonic generation (SHG/THG). Corona poling effectively aligned the chromophores, significantly enhancing second-order NLO activity. UV irradiation induced trans-cis photoisomerization and charge transfer, prompting distinct shifts in absorption and photoluminescence spectra that reflect alterations in electronic states. GAUSSIAN 09 calculations revealed that a narrower HOMO-LUMO gap particularly in polymers with electron-donating substituents correlates directly with enhanced NLO performance. Furthermore, photoisomerization markedly influenced THG responses. Demonstrating a strong interplay between molecular structure, charge transfer dynamics, and optical performance, these styrylquinoline-based polymers show outstanding potential for advanced optical, electro-optical, and photonic systems.
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BibTeX
@article{lang2026experimental,
title = {{Experimental and computational analysis of the nonlinear optical responses of styrylquinoline-functionalized polymers for optoelectronic applications}},
author = {Junhui Lang and Dominique Guichaoua and Vitaliy Smokal and Oksana Kharchenko and Anna Migalska-Zalas and Galyna Myronchuk and Anatolii Andrushchak and Oksana Krupka and Bouchta Sahraoui},
journal = {Physica B: Condensed Matter},
year = {2026},
month = sep,
doi = {10.1016/j.physb.2026.419441},
url = {https://hal.science/hal-05796897v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Experimental and computational analysis of the nonlinear optical responses of styrylquinoline-functionalized polymers for optoelectronic applications
AU - Junhui Lang
AU - Dominique Guichaoua
AU - Vitaliy Smokal
AU - Oksana Kharchenko
AU - Anna Migalska-Zalas
AU - Galyna Myronchuk
AU - Anatolii Andrushchak
AU - Oksana Krupka
AU - Bouchta Sahraoui
PY - 2026
DA - 2026/09/28
JO - Physica B: Condensed Matter
DO - 10.1016/j.physb.2026.419441
UR - https://hal.science/hal-05796897v1
AB - Incorporating photoactive fragments into polymers is a key strategy for designing nextgeneration photochromic materials. Here, new methacrylic polymers containing styrylquinoline fragments were successfully synthesized and characterized. We investigated their nonlinear optical (NLO) properties in thin films, focusing on secondand third-harmonic generation (SHG/THG). Corona poling effectively aligned the chromophores, significantly enhancing second-order NLO activity. UV irradiation induced trans-cis photoisomerization and charge transfer, prompting distinct shifts in absorption and photoluminescence spectra that reflect alterations in electronic states. GAUSSIAN 09 calculations revealed that a narrower HOMO-LUMO gap particularly in polymers with electron-donating substituents correlates directly with enhanced NLO performance. Furthermore, photoisomerization markedly influenced THG responses. Demonstrating a strong interplay between molecular structure, charge transfer dynamics, and optical performance, these styrylquinoline-based polymers show outstanding potential for advanced optical, electro-optical, and photonic systems.
SN - 0921-4526
SN - 1873-2135
ER -