- GOLD NANOPARTICLE-SILICON COMPOSITE MATERIAL USED FOR LOW TEMPERATURE SENSOR

摘要

The present invention relates to a p-type silicon substrate; And a gold (Au) nanoparticle layer formed on the p-type silicon substrate by galvanic displacement, wherein the coverage of the gold nanoparticle layer on the surface of the p-type silicon substrate is in the range of 3.0 - The present invention relates to a gold nanoparticle-silicon composite material for a low-temperature sensor, wherein the gold nanoparticle-silicon composite material according to the present invention has a simple and economical galvanic displacement, Out zone 10 to the freeze-out zone 10 due to the heat accumulation effect by the gold nanoparticles and the heat transport inhibition effect by the increased surface roughness by having the gold nanoparticle layer formed on the freeze- 30K) significantly improved and S _v , it can be usefully used as a substitute for a material for a conventional bolometer or cryogenic sensor.