With black phosphorus being a promising two-dimensional layered semiconductor for application to electronics and optoelectronics, an issue remains as to how heat diffusion is managed when black phosphorus is interfaced with metals, namely in a typical device heterojunction. We use Raman spectroscopy to investigate how the laser-induced heat affects the phonon modes at the interface by comparing the experimental data with a finite element simulation based on a localized heat diffusion. The best convergence is found taking into account an effective interface thermal conductance, thus indicating that heat dissipation at the Au-supported black phosphorus nanosheets is limited by interface effect.

Bonera, E., & Molle, A. (2022). Optothermal Raman Spectroscopy of Black Phosphorus on a Gold Substrate. NANOMATERIALS, 12(9) [10.3390/nano12091410].

Optothermal Raman Spectroscopy of Black Phosphorus on a Gold Substrate

Bonera, Emiliano
;
Molle, Alessandro
2022

Abstract

With black phosphorus being a promising two-dimensional layered semiconductor for application to electronics and optoelectronics, an issue remains as to how heat diffusion is managed when black phosphorus is interfaced with metals, namely in a typical device heterojunction. We use Raman spectroscopy to investigate how the laser-induced heat affects the phonon modes at the interface by comparing the experimental data with a finite element simulation based on a localized heat diffusion. The best convergence is found taking into account an effective interface thermal conductance, thus indicating that heat dissipation at the Au-supported black phosphorus nanosheets is limited by interface effect.
Articolo in rivista - Articolo scientifico
Scientifica
black phosphorus; finite-element method; interface thermal resistance; optothermal raman spectroscopy; phosphorene; Xenes;
English
Bonera, E., & Molle, A. (2022). Optothermal Raman Spectroscopy of Black Phosphorus on a Gold Substrate. NANOMATERIALS, 12(9) [10.3390/nano12091410].
Bonera, E; Molle, A
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/370643
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