Abstract

CIE1931 chromaticity coordinates based parameters as dominant wavelength, complementary wavelength and excitation purity (EP) were applied to analyze the spectral response of single porous silicon (PS) layer sensor structure. Matrix method was used to receive reflectance spectra dependences on porosity (P), refractive index of analyte (nanalyte). Dependences of dominant wavelength, complementary wavelength and EP were calculated on the simulated computed reflectance spectra and optimal parameters were determined for pair analytes as water and ethanol. Whole complex multiple peaks spectra can be characterized using chromaticity parameters contrary to sensor characterization with parameters of individual interference peaks as peak position.

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