Research output: Contribution to journal › Article › peer-review
Role of melting, evaporation, and plasma shielding in surface morphology formation during nanosecond laser texturing of silicon. / Vasilev, M M; Rodionov, A A; Shukhov, Yu G et al.
In: Surfaces and Interfaces, Vol. 97, 110008, 15.09.2026.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Role of melting, evaporation, and plasma shielding in surface morphology formation during nanosecond laser texturing of silicon
AU - Vasilev, M M
AU - Rodionov, A A
AU - Shukhov, Yu G
AU - Smirnov, N I
AU - Samokhvalov, F A
AU - Giannakis, T
AU - Kandyla, M
AU - Sulyaeva, V S
AU - Starinskiy, S V
N1 - The research is founded by the state contract IT SB RAS (№126021217045–9).
PY - 2026/9/15
Y1 - 2026/9/15
N2 - This paper presents a systematic study of silicon microstructure formation under nanosecond laser irradiation in a low-pressure environment. The laser pulse fluence is shown to be the key parameter governing surface morphology. Based on scanning electron microscopy analysis, four stable types of laser-modified surfaces are identified: low-fluence modified surface, black silicon (B-Si), gray silicon (GraySi), and high-fluence modified surface. The plasma shielding efficiency is experimentally quantified over a wide fluence range. An adapted thermal numerical model incorporating plasma shielding is validated against the experimentally determined silicon modification threshold, measured plasma shielding efficiency, and mass removal data. The results demonstrate that B-Si formation occurs in a regime dominated by hydrodynamic processes in the molten layer with minimal evaporation, whereas GraySi emerges under conditions of enhanced evaporation and significant plasma shielding.
AB - This paper presents a systematic study of silicon microstructure formation under nanosecond laser irradiation in a low-pressure environment. The laser pulse fluence is shown to be the key parameter governing surface morphology. Based on scanning electron microscopy analysis, four stable types of laser-modified surfaces are identified: low-fluence modified surface, black silicon (B-Si), gray silicon (GraySi), and high-fluence modified surface. The plasma shielding efficiency is experimentally quantified over a wide fluence range. An adapted thermal numerical model incorporating plasma shielding is validated against the experimentally determined silicon modification threshold, measured plasma shielding efficiency, and mass removal data. The results demonstrate that B-Si formation occurs in a regime dominated by hydrodynamic processes in the molten layer with minimal evaporation, whereas GraySi emerges under conditions of enhanced evaporation and significant plasma shielding.
KW - "ablation"
KW - "black silicon"
KW - "microstructure"
KW - "nanosecond laser texturing"
KW - "silicon"
UR - https://www.scopus.com/pages/publications/105044015539
UR - https://www.mendeley.com/catalogue/7bb3cdca-e676-3f62-866f-852476a7e3c8/
U2 - 10.1016/j.surfin.2026.110008
DO - 10.1016/j.surfin.2026.110008
M3 - Article
VL - 97
JO - Surfaces and Interfaces
JF - Surfaces and Interfaces
SN - 2468-0230
M1 - 110008
ER -
ID: 80148844