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Ir(III), Re(I) and Ru(II) coordination compounds for application in molecular devices

Grant number: 12/15478-0
Support type:Scholarships abroad - Research Internship - Doctorate (Direct)
Effective date (Start): October 01, 2012
Effective date (End): September 30, 2013
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Neyde Yukie Murakami Iha
Grantee:Kassio Papi da Silva Zanoni
Supervisor abroad: Thomas J. Meyer
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Local de pesquisa : University of North Carolina at Chapel Hill (UNC), United States  
Associated to the scholarship:11/10120-8 - Ir(III), Re(I) e Ru(II) coordination compounds for molecular dispositives application, BP.DD

Abstract

In this internship, it's aimed to apply the knowledge on photoelectrochemical cells to produce solar fuel, as well as to elucidate the deactivation mechanisms of coordination compounds excited states, mainly by time resolved investigations. The performance of Ru(II) Dye Sensitized Photosynthesis Cell (DSPECs) will be measured. The deposition of compact oxide layers on the FTO surface, before the mesoporous TiO2 film, can improve these devices. These compact layers should enhance the contact between the mesoporous film and the FTO and block the electronic recombination in the TiO2/mediator interface. The mechanisms and the factors dictating the Ru(II) sensitized-DSPECs efficiencies and the Re(I) complexes photoisomerization will be investigated by time resolved techniques. The influence of the ligands in the efficiency of the different processes, such as electron and energy transfer, luminescence or photoreactivity, will be evaluated. (AU)