Freitag, 05. Dezember 2014, 15:15 - 16:45 iCal

Nanomaterials generated by laser ablation in solvents

Vortrag von Prof. M. MENEGHETTI (Univ. Padova)

Universität Wien, Seminarraum 2 (Rm. 2124) der Fakultät für Chemie
Währinger Straße 42, 1090 Wien

Seminar, Workshop, Kurs

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Laser ablation synthesis in liquid solution (LASiS) is a “green” technique that gives access to the preparation of a library of nanomaterials. Bare noble metal spherical particles, multiphase core–shell oxides, metal–semiconductor heterostructures, layered organometallic compounds and other complex nanostructures can be obtained with the same experimental set up, just by varying a few synthetic parameters. How to govern such versatility is one of the current challenges of LASiS and requires a thorough understanding of the physical and chemical processes involved in the synthesis. In this perspective, the fundamental mechanisms of laser ablation in liquids are summarized, organized according to their temporal sequence and correlated with relevant examples taken from the library of nanomaterials disclosed by LASiS, in order to show how synthesis parameters influence the composition and the structure of products. The resulting framework suggests that, to date, much attention has been devoted to the physical aspects of laser–matter interaction and to the characterization of the final products of the synthesis. Conversely, the clarification of chemical processes active during LASiS deserves more research efforts and requires the synergy among multiple investigation techniques.

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Veranstalter

Institut für Physikalische Chemie

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Kontakt

Univ.-Prof. Dr. Wolfgang Kautek
Erwin Schrödinger Gesellschaft für Nanowissenschaften & Universität Wien
Institut für Physikalische Chemie
01 4277 52470
wolfgang.kautek@univie.ac.at

Erstellt am Montag, 01. Dezember 2014, 17:01
Letzte Änderung am Dienstag, 02. Dezember 2014, 08:06