Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO20)
Publication date: 25th November 2019
Lead-based perovskite solar cells have reached high efficiencies of over 25%[FN1] . However, toxicity and stability of the absorber material are still an obstacle for application and commercialization. Recently the work towards new lead-free absorber materials has drawn more attention in the field of perovskites. These new, fully inorganic, perovskites can be prepared by vacuum deposition.
The novel absorber material systems like bismuth-based double perovskites or other lead-free materials are produced by triple-source co-evaporation of the precursor materials. This results in a high control over the film thickness and its formation. We were able to produce Cs2AgBiBr6 films with increased crystallinity and high phase purity and characterized them with XRD, SEM and AFM. The lead-free double perovskite is now ready to be applied in fully vacuum deposited solar cells. Furthermore, other material combinations are investigated, where we study the influence of halide exchange on the performance of the device and its stability. We also test novel other non-bismuth based double perovskites
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The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.