Effects of Ammonia Gas on Properties of Poly (p-phenylene vinylene)

Abstract

Effects of ammonia gas on the electrical conductivity, photoluminescence, optical absorption and electron spin resonance of poly (p-phenylene vinylene) (PPV) have been studied. The electrical conductivity and luminescence intensity in PPV have been found to increase upon exposure to ammonia gas in contrast to the well-known compensation effect of ammonia gas on other conducting polymers. The results are discussed in comparison with the data of lightly doped samples with p-type dopant (ClO₄⁻) and n-type dopant (TBA⁺).