Figure 2.

TEM and SEM images of the pod-shaped PbS microstructures. Obtained via solvothermal process without surfactant at 180°C for 12 h. (a) Monopods, (b, c, and d) cross-shaped structures, and (e and f) three-dimensional cross-shaped structures.

Cao et al. Nanoscale Research Letters 2012 7:668   doi:10.1186/1556-276X-7-668
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