Solution based processes have gained much interest for the preparation of complex nano-structured materials. Benefits are found in the often direct and simple processing routes allowing for technological exploitation of the processes without the use of complex and size and shape limiting vacuum equipment needed for PVD and CVD. The solution chemical routes span a huge range of sub-disciplines that have been rapidly developed and more and more hybridized during the recent decade to produce very unique and high quality materials of various shapes and complexities. Here research on heterometallic precursor chemistry and solution based routes to complex nano-structured materials in different forms representing different kinds of complex structuring and areas of uses will be presented;
- Solution processing with heterometallic alkoxide precursors.
- Er-doped wave-guides for Near IR amplifiers by use of single Er-ion
- heterometallic alkoxides.
- Electroceramic thin films with a focus on perovskites.
- Complex structure and composition large band-gap semiconductors.
- Nano-structured metals and alloys.
- Hard composites; WC-Co.
- Metal in ceramic nano-composites.
Professor Gunnar Westin (PhD 1995, Assoc. Prof. 1998, Prof. 2006) created the first Swedish sol-gel research group at Stockholm University from the late 1980's. He moved the group to the Department of Materials Chemistry at Uppsala University in the year 2000. The research comprise all aspects of solution based processing of materials; from synthesis and studies of novel heterometallic alkoxide precursors, via sol-gel processing, to control of phase-development during heat-treatment of gels and nano-particles to achieve the target materials. The focus is on complex shape and composition materials. Several new routes have been developed and at least one process is applied in very large scale.
Westin is an elected board member of the International Sol-gel Society (www.isgs.org), Chairman of the selection committee for the biennial ISGS conferences, Editorial board member of Int. J. Nanotechnology, and has served in Swedish and international grant evaluation panels and organized or co-organized several international conferences. He is a reviewer for 20+ journals. The publications include 75+ papers, 6 patent families/applications and 100+ talks at conferences, industry and institutions.
Host: Lisa Klein 732.445.2096