Energy conversion by using lanthanide ions

• Grant number: 13/09182-4
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: September 01, 2013
• End date: January 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Sidney José Lima Ribeiro
• Grantee: Luís Miguel Amante Fortes
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil

Abstract

This research Project included in a cooperative action among the IQ-UNESP, the Depto de Física (USP, campus de São Carlos), the Depto de Química da FFCLRP-USP (campus de Ribeirão Preto) and the Depto. de Química do IST-UTL (Lisboa, Portugal) aims the preparation and characterization of nanoparticulate systrems containing lanthanide ions. The optical properties will be explored towards the energy transfer processe between active ions. Different niobate based systems willl be studied in order to optimize the sensitization of Yb3+ emission in the region of 1000nm through down conversion processes. In a second step developed materials will be tested on comercial photovoltaic silicon cells in order to well harvest the high energy (>2.6eV) of the sun light spectrum, no utilized by the Si cells.