A method for accurately detecting temperature based on surface-enhanced
Raman scattering effect, comprising the following steps: (1) loading a plasmonic
nanoparticle monolayer film on a support substrate; (2) soaking the
monolayer film substrate in a probe In the molecular solution, it is dried to make a
hard substrate temperature sensor or a flexible substrate temperature sensor; (3) The
hard substrate temperature sensor or flexible substrate temperature sensor is placed under a gradient
working temperature to collect the Raman spectrum of its surface, and the characteristic temperature is established. and the
standard curve between the corresponding characteristic
peak intensity; (4) place the
hard substrate temperature sensor or flexible substrate temperature sensor in the detection range, collect the Raman spectrum of its surface, read the characteristic
peak intensity and the temperature The
standard curve comparison of the interval can realize the detection of unknown ambient temperature. The invention is simple to operate, and can realize reproducible, high-stability and high-precision temperature detection based on the temperature-dependent SERS effect of the plasmonic
nanoparticle monolayer film.