Dr Piers Barnes (Imperial College London)
Hybrid organic-inorganic solar cells based on hybrid organic-inorganic halide perovskite structures are promising candidates for cheap, solution processed, highly efficient (>20%) solar cells with a short energy payback time. The materials display many interesting behaviours such as high dielectric constants, ionic transport, photostriction, and hysteresis in the photovoltaic properties, some...
58. Crystal structure and point defect characteristics of quaternary compound semiconductors by neutron diffraction.
Dr Galina Gurieva (Helmholtz-Zentrum Berlin)
Quaternary semiconductors Cu2BIICIVX4(BII–Zn,Cd,Hg;CIV–Si,Ge,Sn;X–S,Se,Te) are considered as interesting material for applications in optoelectrics and non-linear optics. Cu2ZnSn(S1-xSex)4 mixed crystals (CZTSSe) are promising semiconductor materials for absorber layer in thin film solar cells due to a direct band gap in the range 1-1.5 eV and a high absorption coefficient (>104cm-1). A record...
46. Inelastic Neutron Scattering on Colloidal Nanocrystal Solids: Understanding the Importance of Surfaces
Prof. Vanessa Wood (ETH Zurich)
Colloidally synthesized nanocrystals (NCs) are being developed for a large number of energy-related devices, including solar cells, thermoelectrics, and batteries. To function in solid-state devices, these solution-processed NCs are assembled into 3D superlattice structures, known as NC-solids. While phonon density-of-states (g(ω)) have been measured and calculated in bulk crystalline...