Muoniated radicals in the organic semiconductor zinc-phthalocyanine

Detalhes bibliográficos
Autor(a) principal: Duarte, J. Piroto
Data de Publicação: 2003
Outros Autores: Vilão, R. C., Gil, J. M., Alberto, H. V., Ayres de Campos, N., Weidinger, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/4484
https://doi.org/10.1016/S0921-4526(02)01586-7
Resumo: [mu]SR experiments were conducted on the organic semiconductor zinc-phthalocyanine (Zn-Pc) in order to identify and characterize the muon states in this material. Transverse-field experiments at 0.5 mT reveal the existence of paramagnetic muon states in Zn-Pc, with the formation probability of nearly 100%. Two different muoniated radicals were detected, with hyperfine parameters of 127 and 142 MHz; muonium is thus bound to the Zn-Pc molecule at two different sites. Preliminary longitudinal field measurements indicate the onset of spin dynamics above 200 K. The observed relaxation is interpreted as due to spin exchange scattering with charge carriers.
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spelling Muoniated radicals in the organic semiconductor zinc-phthalocyanineOrganic semiconductorsPhthalocyaninesHydrogen doping[mu]SR experiments were conducted on the organic semiconductor zinc-phthalocyanine (Zn-Pc) in order to identify and characterize the muon states in this material. Transverse-field experiments at 0.5 mT reveal the existence of paramagnetic muon states in Zn-Pc, with the formation probability of nearly 100%. Two different muoniated radicals were detected, with hyperfine parameters of 127 and 142 MHz; muonium is thus bound to the Zn-Pc molecule at two different sites. Preliminary longitudinal field measurements indicate the onset of spin dynamics above 200 K. The observed relaxation is interpreted as due to spin exchange scattering with charge carriers.http://www.sciencedirect.com/science/article/B6TVH-47GJ103-3/1/9b94809bb0c63bc7bcd20fdfc0073d302003info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4484http://hdl.handle.net/10316/4484https://doi.org/10.1016/S0921-4526(02)01586-7engPhysica B: Condensed Matter. 326:1-4 (2003) 94-96Duarte, J. PirotoVilão, R. C.Gil, J. M.Alberto, H. V.Ayres de Campos, N.Weidinger, A.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-12-27T15:35:50Zoai:estudogeral.uc.pt:10316/4484Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:37.822054Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Muoniated radicals in the organic semiconductor zinc-phthalocyanine
title Muoniated radicals in the organic semiconductor zinc-phthalocyanine
spellingShingle Muoniated radicals in the organic semiconductor zinc-phthalocyanine
Duarte, J. Piroto
Organic semiconductors
Phthalocyanines
Hydrogen doping
title_short Muoniated radicals in the organic semiconductor zinc-phthalocyanine
title_full Muoniated radicals in the organic semiconductor zinc-phthalocyanine
title_fullStr Muoniated radicals in the organic semiconductor zinc-phthalocyanine
title_full_unstemmed Muoniated radicals in the organic semiconductor zinc-phthalocyanine
title_sort Muoniated radicals in the organic semiconductor zinc-phthalocyanine
author Duarte, J. Piroto
author_facet Duarte, J. Piroto
Vilão, R. C.
Gil, J. M.
Alberto, H. V.
Ayres de Campos, N.
Weidinger, A.
author_role author
author2 Vilão, R. C.
Gil, J. M.
Alberto, H. V.
Ayres de Campos, N.
Weidinger, A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Duarte, J. Piroto
Vilão, R. C.
Gil, J. M.
Alberto, H. V.
Ayres de Campos, N.
Weidinger, A.
dc.subject.por.fl_str_mv Organic semiconductors
Phthalocyanines
Hydrogen doping
topic Organic semiconductors
Phthalocyanines
Hydrogen doping
description [mu]SR experiments were conducted on the organic semiconductor zinc-phthalocyanine (Zn-Pc) in order to identify and characterize the muon states in this material. Transverse-field experiments at 0.5 mT reveal the existence of paramagnetic muon states in Zn-Pc, with the formation probability of nearly 100%. Two different muoniated radicals were detected, with hyperfine parameters of 127 and 142 MHz; muonium is thus bound to the Zn-Pc molecule at two different sites. Preliminary longitudinal field measurements indicate the onset of spin dynamics above 200 K. The observed relaxation is interpreted as due to spin exchange scattering with charge carriers.
publishDate 2003
dc.date.none.fl_str_mv 2003
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/4484
http://hdl.handle.net/10316/4484
https://doi.org/10.1016/S0921-4526(02)01586-7
url http://hdl.handle.net/10316/4484
https://doi.org/10.1016/S0921-4526(02)01586-7
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physica B: Condensed Matter. 326:1-4 (2003) 94-96
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv aplication/PDF
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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