Positron annihilation study in polyaniline conducting polymer

Z. Peng , S. Li , Y. Dai , Biao Wang , S. Wang , Hong Liu , H. Xie

The positron lifetime spectra in polyaniline have been measured as a function of protonation level (pH from 7 to -0.8). We observed that (1) the short lifetime τ1 decreased with the protonation level ; (2) the intermediate lifetime was constant (τ2 ≈ 360 ps), whereas its intensity I2 increased with increasing protonation level which was related to the conductivity of material. These results are discussed in terms of conducting island model.

Domaines: Articles anciens

Z. Peng, S. Li, Y. Dai, Biao Wang, S. Wang, et al.. Positron annihilation study in polyaniline conducting polymer. Journal de Physique IV Proceedings, 1993, 03 (C4), pp.C4-253-C4-255. ⟨10.1051/jp4:1993438⟩. ⟨jpa-00251481⟩