Photoluminescence of silicone oil treated by fluorocarbon plasma

Abstract

We investigated photoluminescence characteristics of silicone oils treated by C2F6 and CHF3 plasma. The silicone oil treated by the C2F6 plasma emitted a white light mainly composed of 415 nm, 469 nm, and 554 nm emissions, while that treated by the CHF3 plasma emitted a pink light (415 nm). Fourier transformed infrared spectroscopy and Raman spectroscopy studies showed that the photoluminescence was correlated with the Si—C bond, the carbon-related defects and the oxygen vacancies. It was suggested that the light emitting at 554 nm was related to the Si—C bond and the carbon-related defects, while the pink emission at 415 nm was related to the oxygen vacancies.

Microstructured Films Formed on Liquid Substrates via Initiated Chemical Vapor Deposition of Cross-Linked Polymers

“…We examined the chemical composition by FTIR spectroscopy which showed that the spectra of the films removed from the surface of the silicone oil and the film formed on a reference silicon wafer were identical and displayed the characteristic carbonyl stretching 43 at 1735 cm −1 . Furthermore, the spectrum of the microstructured PEGDA film does not contain the characteristic signals of silicone oil 44 for Si−C stretching between 900 and 800 cm −1 , confirming that the microstructured films are composed of homopolymer PEGDA and that silicone oil is not integrated into the film (Figure 1e).…”

Molecular structure dependence of acoustic nonlinearity parameter B/A for silicone oils

“…Since the first use of silicone oil as an ocular tamponade agent in clinical retinal therapy, [1] silicone oil has been widely used to treat complicated retinal detachments. [2] Silicone oils are generally polydispersed synthetic polymers consisting of mixtures of linear and cyclic species with different sizes of molecular chains. Though the silicone oil is stable in tissues, it might cause glaucoma or cataract development.…”