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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/8524
Title: 
Changing inter-molecular spin-orbital coupling for generating magnetic field effects in phosphorescent organic semiconductors
Author(s): 
Institution: 
  • Univ Tennessee
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal do Paraná (UFPR)
  • Changchun Inst Appl Chem
  • Huazhong Univ Sci & Technol
ISSN: 
0003-6951
Sponsorship: 
  • U.S. NSF
  • China NSF
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Sponsorship Process Number: 
  • NSF: ECCS-046645
  • U.S. NSF: OISE-0929566
  • China NSF: 50928302
Abstract: 
Phosphorescent organic semiconductors normally show negligible magnetic field effects in electronic and optic responses. These phenomena have been generally attributed to strong spin-orbital coupling which can dominate internal spin-dephasing process as compared with applied magnetic field. This paper reports both positive and negative magnetocurrents from phosphorescent organic semiconductors through dissociation and charge-reaction channels when the intermolecular spin-orbital coupling is changed based on materials mixing. Our experimental results indicate that inter-molecular spin-orbital coupling is essentially responsible for the generation of magnetic field effects in phosphorescent organic semiconductors. (C) 2012 American Institute of Physics. [doi:10.1063/1.3673561]
Issue Date: 
2-Jan-2012
Citation: 
Applied Physics Letters. Melville: Amer Inst Physics, v. 100, n. 1, p. 3, 2012.
Time Duration: 
3
Publisher: 
American Institute of Physics (AIP)
Source: 
http://dx.doi.org/10.1063/1.3673561
URI: 
http://hdl.handle.net/11449/8524
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/8524
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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