Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Imaging atomic structure in metal nanoparticles using high-resolution cryo-TEM

In English

Författare

Summary, in English

It has been shown, by imaging gold (200) planes, that it is possible to achieve better than 0.20-nm structural resolution in cryo-transmission electron microscopy (cryo-TEM). This has been done using commercially available cryo equipment and using a 300-kV field emission gun (FEG) TEM. The images of 15-nm gold particles embedded in amorphous frozen water clearly show the (111) planes (separated by 0.235 nm) in gold. Fourier transform demonstrates the presence of (200) planes in the image, proving a resolution of better than 0.20 nm. The experimental results are Supported by image simulations using the multislice method. These simulations suggest that it should be possible to achieve the same resolution even in smaller particles and particles of lighter elements. The crucial experimental problem to overcome is keeping the thickness of the amorphous film low and to work at low electron dose conditions.

Publiceringsår

2006

Språk

Engelska

Sidor

145-150

Publikation/Tidskrift/Serie

Microscopy and Microanalysis

Volym

12

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Cambridge University Press

Ämne

  • Chemical Sciences

Nyckelord

  • image simulation
  • freezing
  • plunge
  • structural resolution
  • gold particles
  • cryo-TEM
  • nanoparticles

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1435-8115