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Study of Singlet Oxygen Dynamics on Silicon Polymer Matrix
- Hwang, Jeong-Wook, Jung, Seung-Jin, Heo, Il, Son, Hyun-A, Kim, Jong-Ho, Wang, Kang-Kyun, Kim, Yong-Rok
- Journal of Analytical Methods in Chemistry (Online) 2019 v.2019
- films (materials), phosphorescence, photosensitizing agents, silicon, silicone, singlet oxygen, spectroscopy
- We report a detailed analysis of singlet oxygen generated from the photofunctional polymer film (PFPF) matrix which is the silicone polymer film (PDMS) embedded with a photosensitizer. Activation and deactivation dynamics of singlet oxygen generated from PFPFs were investigated with time-resolved phosphorescence spectroscopy. The singlet oxygen generated from PFPFs was dissipated into three different regions of the polymer matrix; the inside (component A), the surface (component B), and the outside (component C). According to the deactivation dynamics of singlet oxygen in the polymer matrix, the components B and C are expected to be more important for various applications.