Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/3562
Título: | Mesoscopic study of the electronic properties of thin polymer films |
Autor(es): | Ribeiro, R. M. Ramos, Marta M. D. Almeida, A. M. Correia, Helena M. G. Silva, Jaime Stoneham, A. M. |
Data: | 2003 |
Editora: | Materials Research Society (MRS) |
Revista: | Materials Research Society Symposium Proceedings |
Citação: | MATERIALS RESEARCH SOCIETY, Fall, Boston, 2002 - "Materials Research Society". [Warrendale] : MRS, 2003. p. 549-554. |
Resumo(s): | Conjugated polymers are very interesting for light emitting diodes. Further improvement in device performance requires a better understanding on the correlation between the polymer structure and device characteristics. A mesoscopic study using a generalised Monte Carlo method of bipolar charge transport in thin poly(p-phenylene-vinylene) (PPV) films is presented in this paper. We show that energy and spatial molecular disorder have a serious influence on migration of charge carriers within the polymer layer. The transfer of carriers between two polymer chains is made dependent on the chemical potential difference as well as on other features such as the distance between both molecules involved and the direction of the electric field. The purpose of the present work is to clarify the effects of local energy and polymer structural disorder on current flow, trapping and recombination on polymer based devices. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/3562 |
ISBN: | 1558996818 |
ISSN: | 0272-9172 |
Versão da editora: | http://www.mrs.org/s_mrs/index.asp |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - FCT - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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repos-P12.pdf | MRS2002 | 253,26 kB | Adobe PDF | Ver/Abrir |