Cargando…

Au-Hyperdoped Si Nanolayer: Laser Processing Techniques and Corresponding Material Properties

The absorption of light in the near-infrared region of the electromagnetic spectrum by Au-hyperdoped Si has been observed. While silicon photodetectors in this range are currently being produced, their efficiency is low. Here, using the nanosecond and picosecond laser hyperdoping of thin amorphous S...

Descripción completa

Detalles Bibliográficos
Autores principales: Kovalev, Michael, Nastulyavichus, Alena, Podlesnykh, Ivan, Stsepuro, Nikita, Pryakhina, Victoria, Greshnyakov, Evgeny, Serdobintsev, Alexey, Gritsenko, Iliya, Khmelnitskii, Roman, Kudryashov, Sergey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10300740/
https://www.ncbi.nlm.nih.gov/pubmed/37374622
http://dx.doi.org/10.3390/ma16124439
Descripción
Sumario:The absorption of light in the near-infrared region of the electromagnetic spectrum by Au-hyperdoped Si has been observed. While silicon photodetectors in this range are currently being produced, their efficiency is low. Here, using the nanosecond and picosecond laser hyperdoping of thin amorphous Si films, their compositional (energy-dispersion X-ray spectroscopy), chemical (X-ray photoelectron spectroscopy), structural (Raman spectroscopy) and IR spectroscopic characterization, we comparatively demonstrated a few promising regimes of laser-based silicon hyperdoping with gold. Our results indicate that the optimal efficiency of impurity-hyperdoped Si materials has yet to be achieved, and we discuss these opportunities in light of our results.