z-logo
open-access-imgOpen Access
Pt nanocrystals formed by ion implantation: A defect-mediated nucleation process
Author(s) -
R. Giulian,
P. Kluth,
L. L. Araujo,
David Llewellyn,
M. C. Ridgway
Publication year - 2007
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.2777165
Subject(s) - nucleation , nanocrystal , irradiation , fluence , materials science , ion , ion implantation , layer (electronics) , germanium , crystallography , range (aeronautics) , metal , nanotechnology , chemistry , optoelectronics , metallurgy , silicon , composite material , organic chemistry , physics , nuclear physics
The influence of ion irradiation of SiO2 on the size of metal nanocrystals (NCs) formed by ion implantation has been investigated. Thin SiO2 films were irradiated with high-energy Ge ions then implanted with Pt ions. Without Ge irradiation, the largest Pt NCs were observed beyond the Pt projected range. With irradiation, Ge-induced structural modification of the SiO2 layer yielded a decrease in Pt NC size with increasing Ge fluence at such depths. A defect-mediated NC nucleation mechanism is proposed and a simple yet effective means of modifying and controlling the Pt NC size is demonstrated.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom