Effect of chemical analyte interactions on electrical and optical properties of iron phthalocyanine thin films

Thin films of Iron phthalocyanine have been deposited onto glass substrates by thermal evaporation technique at room temperature. The observed X-ray pattern suggests the presence of a crystalline phase of iron phthalocyanine in the as-deposited thin films. The electrical measurements (dc conductivity and photoconductivity) have been taken at different temperatures in the range 305-389 K. These films have been studied as chemical sensors such as methanol and ammonia. Electrical measurements indicate that these thin films have moderate sensitivity towards methanol and ammonia vapors.