Nanowires / Nanoobjects


Synthesis and structural characteristics of nanoparticle materials

H. Hofmeister



Irradiation-assisted modification of metal nanoparticles
Various routes of metal nanoparticle formation



Formation and modification of metal particles of nanoscale dimensions (nanoparticles)


(i)    in commercial float glass


(a)    by ion exchange plus subsequent thermal or chemical processing

(b)    by ion implantation plus subsequent thermal processing

(c)    particle modification by electron beam or laser  processing


(ii)    in thin films of planar geometry


(a)    by co-sputtering with matrix material

(b)    by sequential deposition of metal  and matrix material


(iii)    on oxide nanospheres


(a)    metal particle coating of oxide nanospheres by chemical routes

(b)    aggregate formation by utilizing close-packed oxide nanosphere templates



Structural characterisation by transmission electron microscopy


Structural features of the above nanocomposite materials like particle size, shape, arrangement  and configuration are of great interest for potential applications based on their optical properties or chemical reactivity. Controlled adjustment of desired properties requires structural characterisation by conventional and high resolution transmission electron microscopy revealing details down to the atomic scale.




back  |  print  |  to top