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Proceedings Paper

Highly efficient and thermally stable NLO organic materials based on pyrrole and thiophene heterocycles
Author(s): M. Cidália R. Castro; A. Maurício C. Fonseca; M. Belsley; M. Manuela M. Raposo
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Paper Abstract

A series of novel donor-acceptor chromophores designed to have good second order nonlinear optical responses has been synthesized and characterized. This series of compounds was designed to explore the consequence of using different electron accepting moieties which were linked through an arylthiophene bridge to a pyrrole heterocycle that plays the role of an auxiliary donor group. These new push-pull chromophores have been extensively characterized using cyclic voltammetry, thermogravimetric analysis and hyper-Rayleigh scattering (HRS) in solution. The measured molecular first hyperpolarizabilities and the observed electrochemical behavior showed that they were very sensitive to the acceptor strength of the acceptor moieties. Moreover, the combination of their good nonlinearity and high thermal stability make them good candidates for potential device applications.

Paper Details

Date Published: 26 July 2011
PDF: 10 pages
Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80012U (26 July 2011); doi: 10.1117/12.892205
Show Author Affiliations
M. Cidália R. Castro, Univ. of Minho (Portugal)
A. Maurício C. Fonseca, Univ. of Minho (Portugal)
M. Belsley, Univ. of Minho (Portugal)
M. Manuela M. Raposo, Univ. of Minho (Portugal)


Published in SPIE Proceedings Vol. 8001:
International Conference on Applications of Optics and Photonics

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