Laboratory of Multifunctional Materials and Structures

Laboratory of Multifunctional Materials and Structures

Laboratory Website : lab10.infim.ro

Head of Laboratory : Dr. Silviu Polosan

     The laboratory is dedicated to the research of oxidic materials and nanostructures with an emphasis on functionality and applications. A wide range of properties of the materials are studied, including here dielectric , ferroelectric, piezoelectric, optic and transport, for bulk materials, thin films and nanostructures.

There are two main research directions:
  1. Synthesis and characterization of nano-objects (e.g. nanowires, nanotubes, nanocylinders, nanospheres) and of devices or applications including such low dimensional structures (e.g. nanowire diodes, photodetectors, OLED, ultraminiaturised light emitting structures, targeted drug delivery vectors).
  2. Synthesis and characterization of bulk materials and thin films with ferroelectric, piezoelectric or multiferoic properties for applications in various fields such as information technology, communications, microwave technology.
     The activities in the laboratory are well balanced between synthesis and characterization of materials. The main methods of preparation employed are both physical and chemical: pulsed laser deposition and magnetron sputtering, sol-gel, electrodeposition and chemical bath deposition, chemical synthesis and various polymerization approaches. In this way materials with different characteristic sizes are obtained, such as bulk ceramics, thin films and multilayers (including MOS structures), semiconductor and metal nanowires and polymer nanofibers, simple structure or core shell nano-particles of various materials ranging from polymers to semiconductors or magnetic oxides.
     Characterization techniques cover a wide range from optical to transport properties, from structure to microwave properties or magnetism and are basd on a high quality infrastructure. Examples of techniques unique in the area are: deep level transient spectroscopy, near field phtotoluminescence spectroscopy, cathodoluminescence, microwave characterization of materials on a wide range and up to far infrared.
     The structure of personnel is also well balanced, 24 physicist and 6 chemists representing the research personnel of the laboratory out of which 11 young assistants being hired in the last few years.