This document discusses sensing of organic vapors using copper phthalocyanine salt dispersed in sol-gel glass. The researchers dispersed copper phthalocyanine salt in a sol-gel glass matrix and exposed it to methanol and benzene vapors. They found the current increased upon exposure to both vapors, with a greater response to benzene. The activation energy of the material also decreased more after benzene exposure, indicating a change in electronic properties. This demonstrates the ability of copper phthalocyanine salt dispersed glass to sense organic vapors through changes in electrical conductivity and activation energy.