Study of the optical response of oxidized porous silicon structures by thermal oxidation in air

Sierra-Moreno, R. F.; Lujan-Cabrera, Ivan Alonso; Cabrera-Teran, J. M.; Ortiz-Vazquez, Eric; Rodríguez‐García, Mario E.; Ramirez-Gutierrez, C.F.

doi:10.1007/s10853-022-07376-5

Cited by 5 publications

(2 citation statements)

References 47 publications

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“…The optical response of a porous structure can be enhanced if it has a smooth surface. Therefore, many authors exposed that the optical losses by scattering can be reduced when PS is subjected to thermal oxidation given place to smooth surface in the PS structure [25]. Also, it has been found that the transformation of PS to porous Si-SiO 2 strongly decreases the absorption coefficient of Si [26,27].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study of Optical Losses in a Periodic/Quasiperiodic Structure Based on Porous Si-SiO2

Jiménez-Vivanco,

Herrera,

Martínez

et al. 2023

Photonics

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This study investigates the reduction of optical losses in periodic/quasiperiodic structures made of porous Si-SiO2 through a dry oxidation process. Due to their unique optical properties, these structures hold great promise for various optoelectronic applications. By carefully engineering the composition and geometry of the structures, we fabricate periodic/quasiperiodic structures on a quartz substrate using an electrochemical anodization technique and subsequently subject them to dry oxidation at two different temperatures. The structure exhibits two localized modes in the transmission and reflection spectra. Unoxidized and oxidized structures’ complex refractive index and filling factors are determined theoretically and experimentally. Optical characterization reveals that the porous Si-SiO2 structures exhibit lower absorption losses and improved transmission than the pure porous silicon structures. Additionally, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) confirm the presence of porous Si-SiO2 and reduced silicon content. Our study demonstrates that dry oxidation effectively decreases Rayleigh scattering losses, leading to enhanced optical performance and potential applications in efficient optoelectronic devices and systems based on silicon. For instance, periodic/quasiperiodic structures could soon be used as light-emitting devices inside the field of optoelectronics, adding photoluminescent nanoparticles to activate the localized modes.

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Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study of Optical Losses in a Periodic/Quasiperiodic Structure Based on Porous Si-SiO2

Jiménez-Vivanco,

Herrera,

Martínez

et al. 2023

Photonics

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show abstract

“…Porous silicon (PS) is an excellent candidate to be a model object to investigate various conditions favoring/disfavoring thermal transport 1,2 . From a practical point of view, one can fabricate PS with a wide range of pore sizes, porosity, and morphology 3 . Thus, it gives an excellent and clear basis for experimental verifications of the developed models 4,5 .…”

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confidence: 99%

Thermal Transport Properties of Nanoporous Silicon with Significant Specific Surface Area

Isaiev¹,

Yuliia²,

Kuryliuk³

et al. 2023

Preprint

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Performance stability of porous silicon solar cells using reduced graphene oxide for applications in harsh environments

Naderi,

Ahmad

2024

Optics Communications

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Study of the optical response of oxidized porous silicon structures by thermal oxidation in air

Cited by 5 publications

References 47 publications

Theoretical and Experimental Study of Optical Losses in a Periodic/Quasiperiodic Structure Based on Porous Si-SiO2

Theoretical and Experimental Study of Optical Losses in a Periodic/Quasiperiodic Structure Based on Porous Si-SiO2

Thermal Transport Properties of Nanoporous Silicon with Significant Specific Surface Area

Performance stability of porous silicon solar cells using reduced graphene oxide for applications in harsh environments

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