Can I read Photoluminescence of a new water‐insoluble polysiloxane film containing pendant Ru(bpy) and its quenching by dioxygen on EtoBox?

Photoluminescence of a new water‐insoluble polysiloxane film containing pendant Ru(bpy) and its quenching by dioxygen by Keiji Nagai; Nobuo Takamiya; Masao Kaneko is a Materials Science article available to read on EtoBox.

What is Photoluminescence of a new water‐insoluble polysiloxane film containing pendant Ru(bpy) and its quenching by dioxygen about?

## Abstract A new water‐insoluble polysiloxane containing pendant Ru(bpy) (bpy = 2,2′‐bipyridine) was studied with respect to the photoluminescence and its quenching by dioxygen. The emission was quenched by O~2~ in water more efficiently than in gas phase, and the Stern‐Volmer plots showed a downward deviating curve. To determine which of several quenching models can be applied to the present system, the emission decays under various O~2~ concentration were measured, and analyzed by a double exponential decay. From the simulations of the decay using the kinetic parameters obtained from the model analysis, it has been concluded that the quenching by O~2~ is caused by static quenching (model 4). The O~2~ concentration in the film in contact with water estimated from the quenching parameters was much higher than the solubility of O~2~ estimated from the solubility coefficient in a dry film. These results suggest specific affinity of the polysiloxane for O~2~ molecule in water.

Who reads Photoluminescence of a new water‐insoluble polysiloxane film containing pendant Ru(bpy) and its quenching by dioxygen?

Author

Keiji Nagai; Nobuo Takamiya; Masao Kaneko

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1022-1352)

Published

1996

Language

EN

Field

Materials Science (Physical Sciences)