Optothermal Raman Spectroscopy of Black Phosphorus on a Gold Substrate
Autor: | Emiliano Bonera, Alessandro Molle |
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Přispěvatelé: | Bonera, E, Molle, A |
Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Nanomaterials Nanomaterials; Volume 12; Issue 9; Pages: 1410 |
ISSN: | 2079-4991 |
Popis: | 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. |
Databáze: | OpenAIRE |
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