Electrical Characterization of Individual Cesium Lead Halide Perovskite Nanowires Using Conductive AFM |
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| Authors: | Avigail Stern Sigalit Aharon Tal Binyamin Abeer Karmi Dvir Rotem Lioz Etgar Danny Porath |
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| Affiliation: | 1. Institute of Chemistry, Hebrew University of Jerusalem, Jerusalem, 91904 Israel
Center for Nanoscience and Nanotechnology, Hebrew University of Jerusalem, Jerusalem, 91904 Israel;2. Institute of Chemistry, Hebrew University of Jerusalem, Jerusalem, 91904 Israel |
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| Abstract: | Perovskite nanostructures have attracted much attention in recent years due to their suitability for a variety of applications such as photovoltaics, light-emitting diodes (LEDs), nanometer-size lasing, and more. These uses rely on the conductive properties of these nanostructures. However, electrical characterization of individual, thin perovskite nanowires has not yet been reported. Here, conductive atomic force microscopy characterization of individual cesium lead halide nanowires is presented. Clear differences are observed in the conductivity of nanowires containing only bromide and nanowires containing a mixture of bromide and iodide. The differences are attributed to a higher density of crystalline defects, deeper trap states, and higher inherent conductivity for nanowires with mixed bromide–iodide content. |
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| Keywords: | cesium lead halide charge transport conductive properties crystalline defects perovskite nanowires |
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