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Type: 
Journal
Description: 
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.
Publisher: 
MDPI
Publication date: 
20 Apr 2022
Authors: 

Emiliano Bonera, Alessandro Molle

Biblio References: 
Volume: 12 Issue: 9 Pages: 1410
Origin: 
Nanomaterials