Femtosecond-laser direct writing for spatially localized synthesis of PPV

Poly(p-phenylenevinylene), or PPV, is a polymer of great technological relevance due to its electroluminescence properties, which have been exploited in organic light emitting diodes, flexible displays and other optoelectronic devices. Although PPV is a material of foremost importance for many applications, its synthesis on the nano/microscale cannot be achieved through the standard method that uses heating of a precursor polymer. This paper shows how direct laser writing with femtosecond pulses can be employed for the synthesis of PPV in pre-determined regions, allowing a novel approach towards the precise fabrication of complex polymeric microcircuits. The physical-chemical phenomena involved in the conversion of the precursor into PPV are shown to be related to a two-photon induced thermal process, which is confined to the focal volume, resulting in the controlled synthesis of PPV.

• Autores: Avila, Oriana Ines; Almeida, Juliana M.P.; Henrique, Franciele Renata; Fonseca Rodriguez, Ruben Dario; Brito Almeida, Gustavo Foresto; Balogh, Debora T.; Mendonca, Cléber Renato
• Tipo de recurso: Article of journal
• Fecha de publicación: 2017
• Institución: Corporación Universidad de la Costa
• Repositorio: REDICUC - Repositorio CUC
• Idioma: eng
• OAI Identifier: oai:repositorio.cuc.edu.co:11323/1954
• Acceso en línea: https://hdl.handle.net/11323/1954; https://doi.org/10.1039/C7TC00079K; https://repositorio.cuc.edu.co/
• Palabra clave: Display devices; Electromagnetic pulse; Flexible displays; Light emitting diodes; Optical waveguides; Optoelectronic devices; Organic light emitting diodes (OLED); Polymers; Ultrafast lasers
• Rights: openAccess
• License: Atribución – No comercial – Compartir igual