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Applied Physics A

, Volume 91, Issue 3, pp 369-373

Advanced design of conductive polymeric arrays with controlled electrical resistance using direct laser interference patterning

  • A.F. LasagniAffiliated withDepartment of Materials Science, Saarland UniversityGeorgia Institute of Technology, George W. Woodruff School of Mechanical Engineering Email author 
  • , D.F. AcevedoAffiliated withDepartment of Materials Science, Saarland UniversityDepartamento de Química, Universidad Nacional de Río Cuarto
  • , C.A. BarberoAffiliated withDepartamento de Química, Universidad Nacional de Río Cuarto
  • , F. MücklichAffiliated withDepartment of Materials Science, Saarland University

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Abstract

In this work, we report a simple method for the fabrication of regular conducting polyanliline periodic arrays on large areas of glass or gold substrates using direct laser interference patterning. Additionally, by controlling the laser intensity it is possible to precisely tune the width of the periodic arrays and consequently the electrical resistance of the polyanliline strips. The periodic arrays were characterized using scanning electron microscopy, white light interferometry and cyclic voltametry. The great importance of the method reported lies both in its versatility and the ability to control the properties of the modified polymer electrodes with high precision. This is important for prospective applications such as electrochemical sensors.