Tailoring optical constants of few-layer black phosphorus coatings: Spectroscopic ellipsometry approach supported by ab-initio simulation

Aleksandra Wieloszyńska,Krzysztof Pyrchla,Paweł Jakóbczyk, Dawid Lentka,Mirosław Sawczak,Łukasz Skowroński,Robert Bogdanowicz

Journal of Industrial and Engineering Chemistry（2023）

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摘要

•Customizable FLBP coatings achieved through centrifugation fractionation.•FLBP coatings exhibit optical constants similar to isolated flakes, confirmed by spectroscopy.•Complex optical constants of multi-flake composite films (1.38–6.2 eV) determined via ellipsometry.•Optical constants of composite films revealed polarization anisotropy shift.•Analysis showed refractive index of 3.8 at 532 nm and extinction coefficient of 0.5 for 532 nm.

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关键词

black phosphorus coatings,spectroscopic ellipsometry approach,optical constants,few-layer,ab-initio

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