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Possible Formation of H-type Aggregates in H2TPyP/PMMA Guest Host Films

Published online by Cambridge University Press:  31 January 2011

Wesley da Silva Mota ,
Wanessa Canedo Melo ,
Luiz Antônio de Oliveira Nunes ,
Antônio Eduardo da Hora Machado ,
Alzir Azevedo Batista ,
Ilde Guedes  and
Newton Martins Barbosa
Wesley da Silva Mota
Affiliation:
sewfisica@yahoo.com.br, Universidade Federal de Uberlândia, Instituto de Física, Uberlândia, Minas Gerais, Brazil
Wanessa Canedo Melo
Affiliation:
wanessadcm@gmail.com, Universidade Federal do Ceará, Departamento de Física, Fortaleza, Ceara, Brazil
Luiz Antônio de Oliveira Nunes
Affiliation:
luizant@ifsc.usp.br, Universidade de São Paulo, Instituto de Física de São Carlos, São Carlos, Brazil
Antônio Eduardo da Hora Machado
Affiliation:
aeduardo@ufu.br, Universidade Federal de Uberlândia, Instituto de Química, Uberlândia, Minas Gerais, Brazil
Alzir Azevedo Batista
Affiliation:
daab@power.ufscar.br, Universidade Federal de São Carlos, Departamento de Química, São Carlos, São Paulo, Brazil
Ilde Guedes
Affiliation:
guedes@fisica.ufc.br, Universidade Federal do Ceará, Departamento de Física, Fortaleza, Brazil
Newton Martins Barbosa
Affiliation:
newtonfisico@gmail.com, Universidade Federal de Uberlândia, Instituto de Física, Uberlândia, Brazil
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Abstract

In this work we have employed UV-Vis absorbance and excitation techniques in addition to quantum chemical calculations to investigate the probable formation of H-type aggregates of zero charged aryl substituted porphyrin in a guest- host solid state structure. The films were factored via casting technique mixing free-base tetrapyridyl porphyrins (H2TPyP) and polymethilmethacrilate polymer (PMMA) chlorophorm solutions. A pathway for the possible formation of H-type aggregate is suggested.

Keywords

optical propertiesthin filmabsorption

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1212: Symposium S – Organic Materials and Devices for Sustainable Energy Systems , 2009 , 1212-S11-17
Copyright
Copyright © Materials Research Society 2010

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