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. 2022 Mar 4;9(3):859–867. doi: 10.1021/acsphotonics.1c01517

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© 2022 The Authors. Published by American Chemical Society

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(a) Absorbance of PtSe₂ using FTIR spectroscopy. Inset: magnified view of the peak at 1729 cm^–1 (5784 nm). (b) Absorption coefficients of PtSe₂ films with different thicknesses, calculated from their absorbance.