Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
The field of perovskite solar cells (PSCs) is still immature and developments are progressing at an impressive rate. Domination to date of the lead based PSCs has seen efficiencies over 21 % for 0.1 cm2 and 15 % for >1 cm2. Moreover, understanding of the effort of morphology on performance has increased at an equally impressive rate especially the physical operation of both planar and mesoscopic assemblies, material microstructure and charge separation. Furthermore, approaches that enable scale-up (for example; Spray Coating, inkjet printing, Slot-die coating and Electrodeposition with 1cm2 efficiencies greater than 10%) have been steadily improving and make manufacturing more attractive. The fundamental goal, in the diversity of deposition techniques trialled for perovskites, has been to drive the nucleation and crystallisation processes and to achieve uniform coverage of the underlying substrate with an optimal perovskite crystal morphology. For the development of large area PSCs the ability to spatially correlate film properties will be essential for quality and optimisation of performance. Here we report on the conversion of a metallic seed layer to a lead perovskite and the characterisation using scanning electron microscopy, X-ray diffraction, photoluminescene spectroscopy and X-ray photoelectron sprctorcopy.