ORGANIC SILICA THIN FILM, METHOD FOR PRODUCING THE SAME, LASER DESORPTION/IONIZATION MASS SPECTROMETRIC SUBSTRATE USING THE SAME, AND LASER DESORPTION/IONIZATION MASS SPECTROMETRIC METHOD

摘要

An organic silica thin film comprising: organic silica having a light absorbable organic group in a skeleton, wherein the organic group has a local maximum absorption wavelength in a wavelength range of 200 to 1200 nm, a content ratio of silicon and the organic group which constitute the organic silica is in a range of 0.05 to 0.50 based on a ratio of a mass of the silicon to a mass of the organic group ([mass of the silicon]/[mass of the organic group]), the thin film has a textured structure, and an axis direction of the textured structure is a direction substantially perpendicular to a surface opposite to a surface of the organic silica thin film having the textured structure formed therein.