Gas-deposited WO3 Nanoparticles studied by scanning force microscopy

Judit Kopniczky; Anders Hoel; A. Mechler; Peter Heszler; Claes-Goran Granqvist

doi:10.1117/12.547356

25 May 2004 Gas-deposited WO₃ nanoparticles studied by scanning force microscopy

Judit Kopniczky, Anders Hoel, A. Mechler, Peter Heszler, Claes-Goran Granqvist

Proceedings Volume 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II; (2004) https://doi.org/10.1117/12.547356
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

WO₃ nanoparticles were generated by gas deposition. Deposits on Al substrates were studied by scanning force microscopy operated in the intermittent-contact (tapping) mode. At low surface coverage (< 0.5 %), we observed single nanoparticles with a mean size of ~ 1.5 nm. An increase of the amount of particles led to agglomerates, which appeared at surface coverages as low as 2 to 4 %. At full coverage the mean agglomerate size was ~ 5 nm. This value did not change as the sample was annealed at temperatures up to 250 °C. The size distribution of the agglomerates was found to be log-normal, i.e., similar to the size distribution of the gas-phase nanoparticles forming the deposit. For explaining the obtained log-normal size distribution of the agglomerates simulations of the agglomeration process were also carried out.

Citation Download Citation

Judit Kopniczky, Anders Hoel, A. Mechler, Peter Heszler, and Claes-Goran Granqvist "Gas-deposited WO₃ nanoparticles studied by scanning force microscopy", Proc. SPIE 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II, (25 May 2004); https://doi.org/10.1117/12.547356

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available