A UiO-66 3D photonic crystal optical sensor for highly efficient chlorobenzene vapor detection

Abstract

Chlorobenzene (C6H5Cl) is a flammable liquid with high vapor activity, which is a severe threat to the environment and human health.

Highly-accurate solvent identification using dynamic evaporation reflection spectra from an inverse opal sensor combined with a deep learning model

“…6 In addition, PCs possess other advantages such as low cost and high sensitivity, making them highly attractive in the field of sensors. 7 Different types of PCs have been extensively researched as sensors for a wide range of applications, including pH, 8 small molecules, 9,10 gases, [11][12][13] solvents, 14,15 proteins, [16][17][18] viruses, 19,20 exosomes, 21 and cells. 22 Notably, inverse opals (IOs) are one of the widely used PC sensors due to the large volume fraction of their cavities and their high specific surface area, which not only enable the rapid diffusion of analytes within the structure for a quick response but also increase the amount of analytes that can occupy the sensor's cavities or be adsorbed on the wall, thereby increasing the shift in reflection wavelength and enhancing the sensor's sensitivity.…”