Muon-spin relaxation study of charge carrier dynamics in the conducting polymer PPV

Muon-spin relaxation study of charge carrier dynamics in the conducting polymer PPV

Muon-spin relaxation (mu SR) experiments on the conducting polymer poly(2,3-dibutoxy-1,4-phenylene vinylene) (DB-PPV) probe the dynamics of the highly mobile polarons created by the muon-implantation process in which muonium reacts with the polymer forming a radical state. The fluctuating spin densi...

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Bibliographic Details
Main Authors: Blundell, S, Pratt, F, Marshall, I, Husmann, A, Hayes, W, Martin, R, Holmes, AB
Format: Conference item
Published: 2001
Description
Summary:Muon-spin relaxation (mu SR) experiments on the conducting polymer poly(2,3-dibutoxy-1,4-phenylene vinylene) (DB-PPV) probe the dynamics of the highly mobile polarons created by the muon-implantation process in which muonium reacts with the polymer forming a radical state. The fluctuating spin density induced by the electronic spin defect rapidly diffusing up and down the chain leads to a characteristic relaxation, the temperature and field dependence of which permit the extraction of on-chain and inter-chain diffusion rates. These results provide information concerning: the charge-transport mechanism in DB-PPV.

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