Null-ellipsometry investigations of the optical properties and diffusion processes in spin-valve structures based on Co and Cu

Demydenko, Maksym Hennadiiovych; Protsenko, S. I.; Šiffalovič, Peter

doi:10.1016/j.tsf.2012.04.018

Cited by 1 publication

(1 citation statement)

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“…Ellipsometry is a non-destructive technique, which allows for analysis of optical properties of thin films, including thickness and refractive index 29,64 . This technique depends on the changes in polarization state of the light, after reflecting from a thin film.…”

Section: Characterizationmentioning

confidence: 99%

Surface engineering of polystyrene–cerium oxide nanocomposite thin films for refractive index enhancement

James

Unni²,

Taleb

et al. 2019

Nano-Structures & Nano-Objects

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Polymer nanocomposites have gained much importance in the field of optoelectronics due to their unique optical properties. Refractive index engineering using nanoparticles is an effective strategy that could be applied for the fabrication of optical devices. Herein, we report three different strategies which are employed to enhance the refractive index of polymer thin films.These include incorporating cerium oxide nanoparticles onto the polystyrene matrix, secondly adding cerium oxide nanoparticles onto the cross-linkable polystyrene and thirdly by embedding functionalized cerium oxide nanoparticles onto the cross-linkable polystyrene. Refractive index of the polystyrene thin films was enhanced by dispersing neat CeO 2 nanoparticles and functionalized CeO 2 nanoparticles into the polystyrene matrix. 1.38 % enhancement in the refractive index of the polymer nanocomposite thin films could be achieved using our technique.The blending of polystyrene with cerium oxide nanoparticle presents a prospective way to engineer the refractive index of polymer thin films. We firmly believe that the study will be an effective guide towards future research in the area of surface engineering of polymer thin films for refractive index enhancement.

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Section: Characterizationmentioning

confidence: 99%