Laminiertes Substrat

Details

Veröffentlichungs-Nr.

EP4822337

Anmeldetag

28. November 2024

Veröffentlichung

12. Juni 2025

Rechtsraum

EP

IPC

G01N21/64

Abstract

Provided is a layered substrate having excellent fluorescence enhancement characteristics. The layered substrate includes: a plate-shaped substrate having a pair of main surfaces opposite to each other; a plurality of metal-based particles disposed on one main surface of the substrate so as to be separated from each other in a direction parallel to the one main surface; and a protective layer covering a surface of each of the metal-based particles, wherein the plurality of metal-based particles satisfy at least one of the following (1) and (2), and a surface shape of the protective layer conforms to surface shapes of the metal-based particles. (1) An average particle diameter of the plurality of metal-based particles is 200 to 1600 nm, an average height of the plurality of metal-based particles is 55 to 500 nm, and an aspect ratio defined by a ratio of the average particle diameter to the average height is 1 to 8. (2) Each of the plurality of metal-based particles is disposed on the one main surface of the substrate such that an average distance between the plurality of metal-based particles and adjacent metal-based particles is 1 to 1000 nm, and a standard deviation of the average distance is 30 nm or less.

Anmelder

Firma

SUMITOMO CHEMICAL COMPANY, LIMITED

Land

🇯🇵 Japan

Fachgebiete