Fabrication of Electrochemical Sensors Using Direct Laser Transfer

RUSBEL CONEO RODRIGUEZ; CAVALLO PABLO C; ACEVEDO DIEGO F; CESAR BARBERO

Praga

Congreso; 3rd International Conference on Materials and Applications for Sensors and Transducers; 2013

IC-MAST

Laser technology has introduced a number of advantages in many fields of industrial production and research. The properties of the laser are high speed, high power density, facility of automation, non-contact system, possibility to operate in a clean way without the necessity of additional workings, and adaptability to various types of material like steel, aluminum alloys, plastic, wood and textile materials. Taking into account this advantages, the laser has been used for TiO2 transference onto glass materials [1]. On the other hand, there are a lot of experimental works that involve ablation of metals surface. For all of this reason the laser technology applied to metals materials is a powerful method for synthesis of high quality multicomponent thin films. Im et al,. show that it is possible to deposit thin films of conducting polymers by physical sublimation at high vacuum It has been also shown that frozen solutions of polyaniline (PANI) can be used as sources for laser transference methods in vacuum. On the other hand, it has been shown that conducting polymers solid films can be ablated in air by short laser pulses, removing the polymer without degradation. However, in the best of our knowledge, at the moment the laser technology has not been used to transfer conducting polymer in a simple manner, without high vacuum or frozen solution. Additionally, while laser transfer of metals has been extensively described, the fabrication of electrochemical sensors has been less explored. In the present communication we describe a general method to produce electrodes for electrochemical sensors by laser induced transfer. The direct laser transference (DLT) method seems to be able to fabricate electrochemical sensors made of conducting polymers or electrocatalytic metals.