Propriedades de camadas ativas baseadas em perovskita, rubreno e polímero MEH-PPV com aplicação em células solares híbridas

Detalhes bibliográficos
Ano de defesa: 2017
Autor(a) principal: Silva, Ramon Miranda lattes
Orientador(a): Martins, Tatiana Duque lattes
Banca de defesa: Colmati Júnior, Flávio, Pereira, Douglas Henrique
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Goiás
Programa de Pós-Graduação: Programa de Pós-graduação em Química (IQ)
Departamento: Instituto de Química - IQ (RG)
País: Brasil
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/7977
Resumo: Organic semiconductor molecules and polymers have been widely studied because they have morphological and electroluminescent properties that contribute in particular to the development of new photovoltaic systems. Among the most promising properties for this application are the high efficiency in the production of load carriers, good conductivity, ease of manipulation and low cost syntheses, therefore to know the capacity of the active layers for the production of load carriers and the way they operate in a device, is essential to determine the application and the advantages that a material can bring to the photovoltaic systems. In this work we aimed to determinethe photophysical and morphological characteristics of the combination of an electroluminescent polymer MEH-PPV (Poly [2-methoxy-5- (2- ethylhexyloxy) -1,4-phenylenevinylene]), an organic electroluminescent molecule, Rubene (5,6,11,12-tretaphenylnaphthacene) and a hybrid Perovskite semiconductor (CH3NH3SnI_Cl2 and CH3NH3SnI2_Cl), which, when deposited as thin films on the anode of ITO (Tin-doped Indium Oxide), have their new characteristics studied and the combination can be proposed as an active layer for the production of hybrid solar cells based on perovskite. Based on the evaluation of the photophysics of the isolated materials and in solution, thin films layer-by- layer were prepared by two techniques, self-assembly and spin-coating, where their morphological and photophysical characteristics were evaluated. The properties of the active layer composed of the combination of the components were evaluated and the most promising results were obtained for the perovskite composition containing MEH_PPV deposited in a monolayer by the spin-coating technique.