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A self-assembly approach to lead selenide (PbSe) structures that have organized across multiple length scales and multiple dimensions has been achieved. These structures consist of angstrom-scale 0D PbSe crystals, synthesized via a hot solution process, which have stacked into 1D nanorods via aligned dipoles. These 1D nanorods have arranged into nanoscale 2D sheets via directional short-ranged attraction. The nanoscale 2D sheets then further aligned into larger 2D microscale planes. In this study, the authors have characterized the PbSe structures via normal and cryo-TEM and EDX showing that this multiscale multidimensional self-assembled alignment is not due to drying effects. These PbSe structures hold promise for applications in advanced materials—particularly electronic technologies, where alignment can aid in device performance.
Evan K. Wujcik, Stephanie R. Aceto, Radha Narayanan, and Arijit Bose, “Lead Selenide Nanostructures Self-Assembled across Multiple Length Scales and Dimensions,” Journal of Nanomaterials, vol. 2016, Article ID 9575839, 6 pages, 2016. https://doi.org/10.1155/2016/9575839
Available at: https://doi.org/10.1155/2016/9575839
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