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We present a proof-of-concept solid state solar cell with an efficiency of 1.0 % using solution-processed BÍI3 absorber layer. Spin-coated BiI3 thin films show stability in air for over one month. The films were integrated into an all-inorganic photovoltaic device with a transition-metal oxide hole transport layer. Thermal annealing BiL· films at 100 °C in a solvent vapor led to the highest short...
We have furthered the development of CdTe nanocrystals (NCs) to create bulk, sintered films for ink-based solar cells. Here, respectable efficiencies of >10% have been achieved in devices where CdTe tetrapods are spincoated from pyridine, treated with CdCl2 and briefly annealed. We have inserted these NC-based CdTe layers into more than three device geometries with various contact layers. In one...
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