Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers
Muon-spin relaxation (μSR) experiments on the conducting polymers poly(2, 3-dibutoxy-1, 4-phenylene vinylene) and poly(2, 5-bis(dimethyloctylsilyl)-1, 4-phenylene vinylene) probe the dynamics of the highly mobile polarons created by the muon-implantation process in which muonium reacts with the poly...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1797079023856123904 |
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| author | Blundell, S Pratt, F Marshall, I Steer, C Hayes, W Husmann, A Fischmeister, C Martin, R Holmes, AB |
| author_facet | Blundell, S Pratt, F Marshall, I Steer, C Hayes, W Husmann, A Fischmeister, C Martin, R Holmes, AB |
| author_sort | Blundell, S |
| collection | OXFORD |
| description | Muon-spin relaxation (μSR) experiments on the conducting polymers poly(2, 3-dibutoxy-1, 4-phenylene vinylene) and poly(2, 5-bis(dimethyloctylsilyl)-1, 4-phenylene vinylene) 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 dependences of which permit the extraction of intrachain and interchain diffusion rates. The intrachain diffusion rate decreases with temperature and can be fitted to a model of phonon-limited transport. The interchain diffusion rate increases with temperature and can be fitted to an activated temperature dependence. |
| first_indexed | 2024-03-07T00:39:46Z |
| format | Journal article |
| id | oxford-uuid:82a3c5b1-ac53-4f8a-bc25-4fde18f393d9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:39:46Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:82a3c5b1-ac53-4f8a-bc25-4fde18f393d92022-03-26T21:38:50ZMuon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:82a3c5b1-ac53-4f8a-bc25-4fde18f393d9EnglishSymplectic Elements at Oxford2002Blundell, SPratt, FMarshall, ISteer, CHayes, WHusmann, AFischmeister, CMartin, RHolmes, ABMuon-spin relaxation (μSR) experiments on the conducting polymers poly(2, 3-dibutoxy-1, 4-phenylene vinylene) and poly(2, 5-bis(dimethyloctylsilyl)-1, 4-phenylene vinylene) 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 dependences of which permit the extraction of intrachain and interchain diffusion rates. The intrachain diffusion rate decreases with temperature and can be fitted to a model of phonon-limited transport. The interchain diffusion rate increases with temperature and can be fitted to an activated temperature dependence. |
| spellingShingle | Blundell, S Pratt, F Marshall, I Steer, C Hayes, W Husmann, A Fischmeister, C Martin, R Holmes, AB Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title | Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title_full | Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title_fullStr | Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title_full_unstemmed | Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title_short | Muon-spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene-based polymers |
| title_sort | muon spin relaxation study of anisotropic charge carrier motion in polyphenylene vinylene based polymers |
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