Open AccessProbing the Laser Ablation of Black Phosphorus by Raman Spectroscopy
Author(s) -
Gabriele Faraone,
Roberta Sipala,
M Mariani,
Christian Martella,
Carlo Grazianetti,
Alessandro Molle,
Emiliano Bonera
Publication year - 2021
Publication title -
the journal of physical chemistry c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 289
eISSN - 1932-7455
pISSN - 1932-7447
DOI - 10.1021/acs.jpcc.1c01443
Subject(s) - raman spectroscopy , black phosphorus , materials science , laser , laser ablation , ablation , substrate (aquarium) , phosphorus , thermal , spectroscopy , optics , optoelectronics , analytical chemistry (journal) , chemistry , thermodynamics , metallurgy , oceanography , physics , engineering , chromatography , quantum mechanics , geology , aerospace engineering
Laser ablation in conjunction with Raman spectroscopy can be used to attain a controllable reduction of the thickness of exfoliated black phosphorus flakes and simultaneous measurement of the local temperature. However, this approach can be affected by several parameters, such as the thickness-dependent heat dissipation. Optical, thermal, and mechanical effects in the flakes and the substrate can influence the laser ablation and may become a source of artifacts on the measurement of the local temperature. In this work, we carry out a systematic investigation of the laser thinning of black phosphorus flakes on SiO 2 /Si substrates. The counterintuitive results from Raman thermometry are analyzed and elucidated with the help of numerical solutions of the problem, laying the groundwork for a controlled thinning process of this material.
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