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

Controlled growth of nanoparticles from solution with in situ liquid transmission electron microscopy.
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使用原位液体透射电子显微镜控制溶液中纳米颗粒的生长。

DOI:
10.1021/nl201166k
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发表时间:
2011-07-13
期刊:
影响因子:
10.8
通讯作者:
Arslan I
Arslan I
中科院分区:
材料科学1区
文献类型:
--
作者:
Evans JE;Jungjohann KL;Browning ND;Arslan I

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硫化铅纳米粒子的生长的直接可视化表现出通过选择性地分解的化学前体从多组分溶液中使用原位液体透射电子显微镜。我们展示了可重复的控制生长机制,决定了纳米结构的最终形态,同时观察生长在实时与亚纳米空间分辨率。此外,虽然强电子束可以引发纳米颗粒的生长,它也表明,激光可以独立于成像电子触发反应。
Direct visualization of lead sulfide nanoparticle growth is demonstrated by selectively decomposing a chemical precursor from a multi-component 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 sub-nanometer 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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