Dresden 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
DS: Fachverband Dünne Schichten
DS 35: Poster I: Application of thin films; Focus session: Sensoric micro and nano-systems; Focus Session: Sustainable photovoltaics with earth abundant materials; Graphen (joint session with TT; MA; HL; DY; O); Ion and electron beam induced processes; Layer properties: electrical, optical, and mechanical properties; Magnetic/organic interfaces, spins in organics and molecular magnetism; Micro- and nanopatterning (jointly with O); Organic electronics and photovoltaics (jointly with CPP, HL, O); Thermoelectric materials
DS 35.53: Poster
Mittwoch, 2. April 2014, 17:00–20:00, P1
Investigation of metal nanoparticles formed by means of excimer laser irradiation of ion-exchanged glasses — •Maximilian Heinz1, Manfred Dubiel1, Jörg Meinertz2, and Jürgen Ihlemann2 — 1Institute of Physics, Martin Luther University of Halle-Wittenberg, Halle, Germany — 2Laser-Laboratorium Göttingen e. V., Göttingen, Germany
The localized formation of very small metal particles enables the generation of nanostructured materials, which are of interest for manifold applications in photonic and optoelectronic devices. This study investigates the space-selective precipitation of Ag and Ag/Au nanoparticles induced by 193 nm laser irradiation. The Ag and Au ions were introduced into the soda-lime silicate glass matrix by melt and ion exchange processes. The experimentally recorded spectra of optical spectroscopy demonstrated that the reduction of metal ions is due to defect generation, for example the generation electron hole centres. The sizes of nanoparticles, their distribution and their thermal stability were investigated as a function of the used laser parameters and the thermal treatments, respectively. Measurements of the optical density and experiments of small angle X-ray scattering (SAXS) allowed to identify the resulting surface plasmon resonance in correlation with the size and composition of formed nanoparticles.