期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 125, 期 16, 页码 8704-8711出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.1c01443
关键词
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资金
- H2020 research and innovation programme under the ERC-COG 2017 [772261]
- European Research Council (ERC) [772261] Funding Source: European Research Council (ERC)
This study investigates the controlled thinning of black phosphorus flakes using laser ablation, along with the analysis of local temperature measurement results. It was found that parameters such as thickness-dependent heat dissipation can affect this process.
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 SiO2/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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