Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers

Research output: Contribution to journalArticleResearchpeer review

Authors

  • M. Oubaha
  • R. Copperwhite
  • C. Boothman
  • A. Ovsianikov
  • R. Kiyan
  • V. Purlys
  • M. O'Sullivan
  • C. McDonagh
  • B. Chichkov
  • R. Gadonas
  • B. D. MacCraith

External Research Organisations

  • Dublin City University
  • Laser Zentrum Hannover e.V. (LZH)
  • Vilnius University
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Details

Original languageEnglish
Pages (from-to)400-408
Number of pages9
JournalJournal of materials science
Volume46
Publication statusPublished - 3 Sept 2010
Externally publishedYes

Abstract

Recent interest in photolithographic processes employing single and two-photon absorption processes have afforded advanced opportunities to fabricate both planar and three-dimensional microstructures. The fabrication of such structures is dependent on the local polymerization of the organic moieties using photoinitiating molecules, and a key parameter to consider is the dependency of the photoreactivity of these initiators on the matrices in which they are dispersed. To our knowledge, there has been no comprehensive investigation reported on the photoreactivity dependency of commercially available photoinitiators inserted within hybrid sol-gel materials. The aim of this paper is to highlight and explain the influence of the composition of hybrid organic-inorganic sol-gel materials on the photoreactivity of UV-sensitive initiators. Of particular interest is the understanding of the interactions between photoinitiating molecules and the sol-gel matrix. It is shown that both the nature of the chelating agent as well as the degree of chelation of the inorganic part of the hybrid sol-gel material significantly influence the spectral absorption of the photoinitiator. It is demonstrated that metal-ligand charge transfer processes are the main phenomena responsible for the red shift of the absorption of the amino-functionalized photoinitiators, which is strongly dependent on the condensation of the materials.

ASJC Scopus subject areas

Cite this

Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers. / Oubaha, M.; Copperwhite, R.; Boothman, C. et al.
In: Journal of materials science, Vol. 46, 03.09.2010, p. 400-408.

Research output: Contribution to journalArticleResearchpeer review

Oubaha, M, Copperwhite, R, Boothman, C, Ovsianikov, A, Kiyan, R, Purlys, V, O'Sullivan, M, McDonagh, C, Chichkov, B, Gadonas, R & MacCraith, BD 2010, 'Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers', Journal of materials science, vol. 46, pp. 400-408. https://doi.org/10.1007/s10853-010-4853-1
Oubaha, M., Copperwhite, R., Boothman, C., Ovsianikov, A., Kiyan, R., Purlys, V., O'Sullivan, M., McDonagh, C., Chichkov, B., Gadonas, R., & MacCraith, B. D. (2010). Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers. Journal of materials science, 46, 400-408. https://doi.org/10.1007/s10853-010-4853-1
Oubaha M, Copperwhite R, Boothman C, Ovsianikov A, Kiyan R, Purlys V et al. Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers. Journal of materials science. 2010 Sept 3;46:400-408. doi: 10.1007/s10853-010-4853-1
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title = "Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers",
abstract = "Recent interest in photolithographic processes employing single and two-photon absorption processes have afforded advanced opportunities to fabricate both planar and three-dimensional microstructures. The fabrication of such structures is dependent on the local polymerization of the organic moieties using photoinitiating molecules, and a key parameter to consider is the dependency of the photoreactivity of these initiators on the matrices in which they are dispersed. To our knowledge, there has been no comprehensive investigation reported on the photoreactivity dependency of commercially available photoinitiators inserted within hybrid sol-gel materials. The aim of this paper is to highlight and explain the influence of the composition of hybrid organic-inorganic sol-gel materials on the photoreactivity of UV-sensitive initiators. Of particular interest is the understanding of the interactions between photoinitiating molecules and the sol-gel matrix. It is shown that both the nature of the chelating agent as well as the degree of chelation of the inorganic part of the hybrid sol-gel material significantly influence the spectral absorption of the photoinitiator. It is demonstrated that metal-ligand charge transfer processes are the main phenomena responsible for the red shift of the absorption of the amino-functionalized photoinitiators, which is strongly dependent on the condensation of the materials.",
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T1 - Influence of hybrid organic-inorganic sol-gel matrices on the photophysics of amino-functionalized UV-sensitizers

AU - Oubaha, M.

AU - Copperwhite, R.

AU - Boothman, C.

AU - Ovsianikov, A.

AU - Kiyan, R.

AU - Purlys, V.

AU - O'Sullivan, M.

AU - McDonagh, C.

AU - Chichkov, B.

AU - Gadonas, R.

AU - MacCraith, B. D.

N1 - Funding information: The authors wish to thank CIBA Specialty Chemicals Corporation for having generously provided the Irgacures photoinitiators employed in this study, and gratefully acknowledge the financial support of Enterprise Ireland under the ‘‘Commercialisation Fund Technology Development’’ project Multibiosense (TD/08/309). This study was also supported by the DFG Excellence Cluster ‘Rebirth’ and SFB Transregio 37, and ERASPOT. Authors would also like to thank the LaserLab initiative.

PY - 2010/9/3

Y1 - 2010/9/3

N2 - Recent interest in photolithographic processes employing single and two-photon absorption processes have afforded advanced opportunities to fabricate both planar and three-dimensional microstructures. The fabrication of such structures is dependent on the local polymerization of the organic moieties using photoinitiating molecules, and a key parameter to consider is the dependency of the photoreactivity of these initiators on the matrices in which they are dispersed. To our knowledge, there has been no comprehensive investigation reported on the photoreactivity dependency of commercially available photoinitiators inserted within hybrid sol-gel materials. The aim of this paper is to highlight and explain the influence of the composition of hybrid organic-inorganic sol-gel materials on the photoreactivity of UV-sensitive initiators. Of particular interest is the understanding of the interactions between photoinitiating molecules and the sol-gel matrix. It is shown that both the nature of the chelating agent as well as the degree of chelation of the inorganic part of the hybrid sol-gel material significantly influence the spectral absorption of the photoinitiator. It is demonstrated that metal-ligand charge transfer processes are the main phenomena responsible for the red shift of the absorption of the amino-functionalized photoinitiators, which is strongly dependent on the condensation of the materials.

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