Production and characterization of metallic electrodes for applications in polymerics and hybrids solar cells

• Grant number: 11/20967-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2012
• End date: December 31, 2012
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Carlos Frederico de Oliveira Graeff
• Grantee: Luíz Gustavo Simão Albano
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

This project is about the production and characterization of metallic electrodes for hybrids and polymeric solar cells (CSs). The electrodes will be produced in the shape of thin films by thermal evaporation. To meet the different requirements of semiconducting polymers and structures of the devices will be used for high electrical conductivity metals such as Au, Al, and Cu as well as alloys involving these and other metals in order to obtain different values of work function. The geometry and thickness of the electrodes will also be optimized for each type of solar cell. The characterization of metallic electrodes will be accomplished through sheet resistance measurements. The characterization of the junctions polymer/metal and the characterization of the devices themselves will be performed using measurements of photo-current and current versus voltage in the dark and under controlled lighting. Based on the results will be possible to obtain a relation between the efficiency of the CS and the structural and electrical properties of the metal electrode used.(AU)