The e †ect of di †erent polarization orientations of the excitation source on the Raman and photoluminescence (PL) spectra of a porous silicon (PS) layer within two di †erent micro-regions was investigated. Two micro-regions (2 lm) along the (100) direction were studied, close to the crystalline sil
Photoacoustic investigations of the optical absorption spectra of porous silicon layers on a silicon backing
✍ Scribed by Mirosław Maliński; Łukasz Chrobak; Leszek Bychto
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 972 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0038-1098
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✦ Synopsis
This paper presents a series of experimental photoacoustic spectra of porous silicon layers on crystalline silicon and their numerical analysis performed in the proposed two-layer model. The goal of the analysis was to calculate the optical absorption spectra of porous silicon from the photoacoustic spectra of porous silicon layers on a silicon background. The experimental character of the observed absorption band associated with the porous silicon was revealed. This is the first attempt at a theoretical interpretation of the photoacoustic spectra of porous silicon on a silicon backing.
📜 SIMILAR VOLUMES
Silicon nanocrystal superlattices consisting of alternating layers of silicon-rich oxide (SRO) and silica (SiO 2 ) were grown by electron beam evaporation, followed by thermal processing. All of the SRO depositions and the processing steps were done under conditions that were as similar as possible