Anisotropic polaron motion in polyaniline studied by muon spin relaxation
Muon spin relaxation has been used to probe the highly anisotropic motion of polaronic charge carriers in the emeraldine base form of polyaniline. The measured diffusion rate along the polymer chain for negative polarons shows a metalliclike temperature dependence, which is saturated at low temperat...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Published: |
1997
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| _version_ | 1797050856236908544 |
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| author | Pratt, F Blundell, S Hayes, W Nagamine, K Ishida, K Monkman, A |
| author_facet | Pratt, F Blundell, S Hayes, W Nagamine, K Ishida, K Monkman, A |
| author_sort | Pratt, F |
| collection | OXFORD |
| description | Muon spin relaxation has been used to probe the highly anisotropic motion of polaronic charge carriers in the emeraldine base form of polyaniline. The measured diffusion rate along the polymer chain for negative polarons shows a metalliclike temperature dependence, which is saturated at low temperatures but becomes limited by phenylene ring librational scattering above 150 K. The interchain transport at room temperature is more than 4 orders of magnitude slower than the intrachain process and becomes further suppressed on cooling. |
| first_indexed | 2024-03-06T18:11:24Z |
| format | Journal article |
| id | oxford-uuid:032ac723-d9c9-4093-9edf-e83769fe4bc2 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:11:24Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:032ac723-d9c9-4093-9edf-e83769fe4bc22022-03-26T08:44:25ZAnisotropic polaron motion in polyaniline studied by muon spin relaxationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:032ac723-d9c9-4093-9edf-e83769fe4bc2Symplectic Elements at Oxford1997Pratt, FBlundell, SHayes, WNagamine, KIshida, KMonkman, AMuon spin relaxation has been used to probe the highly anisotropic motion of polaronic charge carriers in the emeraldine base form of polyaniline. The measured diffusion rate along the polymer chain for negative polarons shows a metalliclike temperature dependence, which is saturated at low temperatures but becomes limited by phenylene ring librational scattering above 150 K. The interchain transport at room temperature is more than 4 orders of magnitude slower than the intrachain process and becomes further suppressed on cooling. |
| spellingShingle | Pratt, F Blundell, S Hayes, W Nagamine, K Ishida, K Monkman, A Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title | Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title_full | Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title_fullStr | Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title_full_unstemmed | Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title_short | Anisotropic polaron motion in polyaniline studied by muon spin relaxation |
| title_sort | anisotropic polaron motion in polyaniline studied by muon spin relaxation |
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