Projects per year
Abstract
We study the surface morphology, optical absorption (400–1100 nm), and carrier lifetime of black silicon fabricated by femtosecond (fs) laser in air. We explore a large laser parameter space, for which we adopt a single parameter ξ to describe the cumulative fluence delivered to the sample. We also study the laser-oxidized surface layer by measuring its photoluminescence spectra and comparing its effect on the aforementioned properties. Our study in a broad range of ξ is instructive in choosing laser parameters when targeting different applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1224 - 1227 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 48 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Mar 2023 |
| MoE publication type | B1 Article in a scientific magazine |
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Dive into the research topics of 'Optoelectronic properties of black silicon fabricated by femtosecond laser in ambient air: exploring a large parameter space'. Together they form a unique fingerprint.Projects
- 4 Active
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PREIN/Savin 2
Savin, H., Liu, X. & Radfar, B.
01/09/2022 → 31/12/2026
Project: Academy of Finland: Other research funding
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NIR
Vähänissi, V., Savin, H., Ayedh, H., Setälä, O., Radfar, B. & Liu, H.
01/09/2020 → 31/08/2024
Project: Academy of Finland: Other research funding
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NanoWires (EMPIR)
Savin, H., Chen, K. & Pasanen, T.
01/09/2020 → 31/08/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)