Experiences with Swiss-Brazilian Research collaboration
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- Bethany Cummings
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1 Experiences with Swiss-Brazilian Research collaboration
2 Transport and recombination processes in organic optoelectronic devices investigated by electrically detected magnetic resonance Prof. C. F. O. Graeff (Ribeirao Preto UNAERP, Bauru UNESP) Prof. L. Zuppiroli (EPFL), Prof. F. A. Nüesch (EPFL, Empa) ICSM 2000 (Bad Gastein) ICSM 2008 (Porto de Galinhas) Brazilian-Swiss Joint Research Programme (BSJRP) Prof. C. F. O. Graeff - Joint PhD student (Empa): Dr. Fernando A. Castro -> NPL (London) - Exchange PhD student (U Bauru): Oswaldo Nunes Neto - PhD student(empa/unizh): Anna Véron - Many further collaborators on both sides
3 Transport Recombination singlet triplet
4 Batagin-Neto, A., et al. (2011). Exciton formation in dye doped OLEDs using electrically detected magnetic resonance. Photonics and Optolectronics Meetings. E. Kasper, J. Yu, X. Li et al Castro, F. A., et al. (2006). "Nanostructured organic layers via polymer demixing for interface-enhanced photovoltaic cells." Chemistry of Materials 18(23): Castro, F. A., et al. (2009). "Photoinduced hole-transfer in semiconducting polymer/low-bandgap cyanine dye blends: evidence for unit charge separation quantum yield." Physical Chemistry Chemical Physics 11(39): Castro, F. A., et al. (2005). "Crossover from capacitive to pseudoinductive charge-relaxation in organic/polymeric light-emitting diodes." Applied Physics Letters 87(1). Castro, F. A., et al. (2006). "On the use of cyanine dyes as low-bandgap materials in bulk heterojunction photovoltaic devices." Synthetic Metals 156(14-15): Castro, F. A., et al. (2007). "Influence of doping on spin-dependent exciton formation in Alq(3) based OLEDs." Organic Electronics 8(2-3): Castro, F. A., et al. (2004). "Electrically detected magnetic resonance of organic and polymeric light emitting diodes." Journal of Non-Crystalline Solids 338: Gomez, J. A., et al. (2012). "On the origin of exciton formation in dye doped Alq(3) OLEDs." Applied Physics a-materials Science & Processing 108(3): Gomez, J. A., et al. (2010). "Magnetic field effects on the conductivity of organic bipolar and unipolar devices at room temperature." Synthetic Metals 160(3-4): Graeff, C. F. O., et al. (2005). "Transport and recombination in organic light-emitting diodes studied by electrically detected magnetic resonance." European Physical Journal E 18(1): Heier, J., et al. (2014). Cyanine dyes in solid state organic heterojunction solar cells. Organic Photovoltaics Xv. Z. H. Kafafi, P. A. Lane and I. D. W. Samuel Silva, G. B., et al. (2005). Spin dependent transport and recombination in organic light-emitting diodes. Physica Status Solidi C - Conference and Critical Reviews, Vol 2, No 10. M. Stutzmann. 2:
5 All-organic optical upconversion device for single-element near-infrared imaging Prof. M. Cremona (PUC RJ, INMETRO) Prof. F. A. Nüesch (EPFL, Empa), Dr. J. Hany (Empa) SBPMat 2014 (João Pessoa) Scientific & Technological Cooperation Programme Switzerland -Rio de Janeiro (STCPSRJ) BSJRP seed money grant ( ) Visiting PhD student (Empa/EPFL): Sandra Jenatsch Prof. M. Cremona PhD student (Empa/EPFL): Paolo Testa Financing on Brazilian side still pending
6 Combining an OLED with an NIR active PV cell
7 Gained experience Unbureaucratic project coordination Important: Research topic with mutual interest and complementarity Exchange is fruitful for both sides and leads to network Be sure that exchange students bring the necessary English skills Conferences are a meeting point where new projects are seeded
8 Acknowledgement EPFL Leading House Swiss Bilateral Programmes
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