On the photo-oxidation of perylene bisimide dyes in alcoholic solutions

Johan Lub; Paul A. van Hal; Roel Smits; Lise Malassenet; Jeroen Pikkemaat; Rifat A.M. Hikmet

doi:10.1016/j.jlumin.2018.12.005

On the photo-oxidation of perylene bisimide dyes in alcoholic solutions

Johan Lub (Corresponding author), Paul A. van Hal, Roel Smits, Lise Malassenet, Jeroen Pikkemaat, Rifat A.M. Hikmet

Stimuli-responsive Functional Materials & Devices

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Abstract

Irradiation with intense blue LED light of Lumogen orange 240 (1) in non-reactive solvents led to bleaching. The products of these photochemical reactions were not possible to determine. Contrarily, irradiation in ethanol or propanol led to red color shifts caused by the formation of the ethoxy or propoxy derivative of Lumogen orange 240, respectively. These new reaction products are only formed when both light and oxygen are present. A possible mechanism for these photo-oxidation reactions, the implication for the stability of perylene type of fluorescent dyes under LED lamp conditions and possible preparative applications are discussed.

Original language	English
Pages (from-to)	585-588
Number of pages	4
Journal	Journal of Luminescence
Volume	207
DOIs	https://doi.org/10.1016/j.jlumin.2018.12.005
Publication status	Published - 1 Mar 2019

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Keywords

Fluorescent compounds
Lumogen orange 240
Photo stability
Photo substitution
Photo-oxidation

Cite this

Lub, J., van Hal, P. A., Smits, R., Malassenet, L., Pikkemaat, J., & Hikmet, R. A. M. (2019). On the photo-oxidation of perylene bisimide dyes in alcoholic solutions. Journal of Luminescence, 207, 585-588. https://doi.org/10.1016/j.jlumin.2018.12.005

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abstract = "Irradiation with intense blue LED light of Lumogen orange 240 (1) in non-reactive solvents led to bleaching. The products of these photochemical reactions were not possible to determine. Contrarily, irradiation in ethanol or propanol led to red color shifts caused by the formation of the ethoxy or propoxy derivative of Lumogen orange 240, respectively. These new reaction products are only formed when both light and oxygen are present. A possible mechanism for these photo-oxidation reactions, the implication for the stability of perylene type of fluorescent dyes under LED lamp conditions and possible preparative applications are discussed.",

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AU - Smits, Roel

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AU - Pikkemaat, Jeroen

AU - Hikmet, Rifat A.M.

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AB - Irradiation with intense blue LED light of Lumogen orange 240 (1) in non-reactive solvents led to bleaching. The products of these photochemical reactions were not possible to determine. Contrarily, irradiation in ethanol or propanol led to red color shifts caused by the formation of the ethoxy or propoxy derivative of Lumogen orange 240, respectively. These new reaction products are only formed when both light and oxygen are present. A possible mechanism for these photo-oxidation reactions, the implication for the stability of perylene type of fluorescent dyes under LED lamp conditions and possible preparative applications are discussed.

KW - Fluorescent compounds

KW - Lumogen orange 240

KW - Photo stability

KW - Photo substitution

KW - Photo-oxidation

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