Positron annihilation study in polyaniline conducting polymer
Résumé
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 anciensOrigine | Accord explicite pour ce dépôt |
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