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Article Dans Une Revue Applied Physics Letters Année : 2009

Seeing structures and measuring properties with transmission electron microscopy images: A simple combination to study size effects in nanoparticle systems

Résumé

We report on a method to measure the mean inner potential (V-0) using transmission electron microscopy. It is based on phase retrieval from a focus series and has allowed to measure V-0 as a function of the size for a system of gold nanoparticles. It comes out that V-0 increases for particles below 2 nm. The focus series being carried out in conditions close to the high-resolution ones, structural information can be directly obtained. The high-resolution images have revealed that significant structural change occurs below the 2 nm size, which should be related to the V-0 increase.
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Dates et versions

hal-00428623 , version 1 (29-10-2009)

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P. Donnadieu, S. Lazar, G. A. Botton, I. Pignot-Paintrand, M. Reynolds, et al.. Seeing structures and measuring properties with transmission electron microscopy images: A simple combination to study size effects in nanoparticle systems. Applied Physics Letters, 2009, 94 (26), pp.263116. ⟨10.1063/1.3168525⟩. ⟨hal-00428623⟩
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