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Nano Lett. 2011 Jul 13;11(7):2809-13. doi: 10.1021/nl201166k. Epub 2011 May 27.

Controlled growth of nanoparticles from solution with in situ liquid transmission electron microscopy.

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  • 1Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616, United States.


Direct visualization of lead sulfide nanoparticle growth is demonstrated by selectively decomposing a chemical precursor from a multicomponent solution using in situ liquid transmission electron microscopy. We demonstrate reproducible control over growth mechanisms that dictate the final morphology of nanostructures while observing growth in real-time with subnanometer spatial resolution. Furthermore, while an intense electron beam can initiate nanoparticle growth, it is also shown that a laser can trigger the reaction independently of the imaging electrons.

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