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| - PEG-Assisted Fabrication of Single-Crystalline CuI Nanosheets: A General Route toTwo-Dimensional Nanostructured Materials
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| - CuI single-crystalline nanosheets have been prepared for the first time via a PEG-assisted aqueous solutionroute at room temperature. The thickness and in-plane size of the nanosheets were ca. 60−80 nm and severalmicrometers, respectively. The two basal surfaces of these nanosheets were (111) planes. The phasetransformation temperature and the melting point decreased 8 and 12 °C compared with those of the bulkCuI, respectively. The resistance of a single CuI nanosheet was measured by using a conductive AFM tipmethod, and a high conductivity of 1.996 × 10-2 Ω·cm and a photoconduction phenomenon were observed.It is found that the coexistence of PEG600 and SDBS was vital to the formation of nanosheets. This simpleroute could be employed to synthesize more 2D nanostructures as a general process.
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