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SUMMARY:From Perovskites to Nanotubes: Novel Materials for High Performanc
 e Solar Cells - Dr Sam Stranks\, University of Oxford\, United Kingdom
DTSTART:20130312T143000Z
DTEND:20130312T153000Z
UID:TALK43084@talks.cam.ac.uk
CONTACT:Dr. Girish Lakhwani
DESCRIPTION:Organic and hybrid organic/inorganic systems are promising for
  solar cell device optimisation owing to a vast library of materials\, whi
 ch are available at potentially low-costs. Our group has recently demonstr
 ated high performance meso-superstructured solar cells utilizing a novel o
 rganic-inorganic mixed halide perovskite structure as the light harvesting
  antenna and charge generation centre on a TiO2 and insulating Al2O3 mesop
 orous scaffold (Lee et al.\, Science 2012\, 338\, 643). I will present rec
 ent spectroscopic and device results on this system. In particular\, I wil
 l focus on an architecture where we co-functionalise the metal oxide scaff
 old with an organic surface adsorbed fullerene (C60-SAM)\, and use a semic
 onducting polymer hole-conductor. This establishes a highly tuneable route
  forward for ‘dual absorbing’ polymer-perovskite hybrid photovoltaics.
  Finally\, I will present two methods in which we manipulate the binding o
 f multiple semiconducting polymers to carbon nanotubes to produce new and 
 novel nanostructures which show promise for use in organic solar cells.
LOCATION:Kapitza Building Seminar Room\, Cavendish Laboratory\, Department
  of Physics
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