On January 25, German Ambassador to Moldova, Matthias Meyer attended at the Technical University of Moldova the commissioning of a modern nanotechnology equipment, donated by the Alexander von Humboldt Foundation from Germany.
The event was also attended by the First vice-president of the Academy of Sciences of Moldova, acad. Ion Tighineanu and the vice-rector of the Technical University of Moldova, , assoc.prof. Dr. Valentin Amariei as well as young researchers.
During the event, the German Ambassador transmitted the donation certificate to the doctor of technical sciences Veaceslav Popa from the National Center for Materials Study and Testing. The equipment is aimed for plasma etching of passive dielectric films on a variety of devices, including sensors, detectors, transistors, etc.
A fascinating lecture entitled "Nanotechnology - the call of time," was presented by the vice-president of the Academy of Sciences of Moldova, coordinator of the MOLD-ERA project prof. Ion Tiginyanu. The lecture has been broadcast by TV Channel 'Kultura' (Russian Federation) on March 13-14, 2012.
Prof. Tiginyanu considered the origin and development of nanotechnology - from the statement of Professor Richard Feynman according to which "there is plenty of room at the bottom" to the recent advances in two-dimensional crystals and metal dielectric structures for photonics.
The lecture was presented to the students from Moscow universities in the framework of video lectures cycle "ACADEMIA".
The national television channel JURNAL TV broadcasted the program "The World in the NANO age" with the participation of prof. Ion Tiginyanu, Vice-President of the Academy of Sciences of Moldova, Dr. Hans L. Hartangel, Professor at the Technical University of Darmstadt, Germany, honorary member of ASM, and Dr. Hidenori Mimura, Professor at the University of Shizuoka in Japan.
A new way to fabricate 3D nanostructures from gallium nitride using a focused ion beam (FIB) has been developed by researchers in Moldova, Australia, Germany and France. The technique, which involves directly writing a negative charge on the surface of GaN with the FIB and then photoelectrochemically etching the sample, allows ultrathin membranes and supporting nanocolumns to be fashioned in a controlled way. GaN is a large-bandgap semiconductor widely used in electronics applications such as high-temperature, high-power electronics and optoelectronics for light-emitting diodes and lasers. The material is also piezoelectric, so bridge-like GaN membranes might even find use in applications like nanoelectromechanical systems (NEMS).
The International Society for Optics and Photonics (SPIE) highlights the development of “Ultra-thin membranes of non-layered crystalline solids” by our researchers Prof. Ion Tiginyanu and Dr. Veaceslav Popa.
http://spie.org/x48698.xml?highlight=x2400&ArticleID=x48698
http://spie.org/x2434.xml?highlight=x2400&parentid=x2400&parentname=Nanotechnology
Our paper highlighted on Cover of Physica Status Solidi - Rapid Research Letters
In the Rapid Research Letter on p. 100, Mihai Enachi et al. demonstrate that anodization of Ti sheets in ethylene glycol and HF containing electrolyte leads to the formation of ordered arrays of double-walled TiO2 nanotubes. Interestingly, the inner diameter can be tuned in the range from 10 nm to 250 nm through the change of the electrolyte temperature while the outer nanotube diameter and the density of nanotubes remain temperature independent. The authors present evidence for the formation of a self-organized surface nucleation layer that is genetically connected to the outer nanotube shell at the origin of this phenomenon. These findings pave the way for manufacturing ordered arrays of TiO2 nanotubes with modulated inner diameter by a simple change of the electrolyte temperature.
http://www3.interscience.wiley.com/journal/112716025/home
http://www3.interscience.wiley.com/journal/112716025/home/cover/current.html
A new book on nanotechnologies and nanomaterials was recently published by Woodhead Publishing in UK, with two co-editors Prof. Ion Tiginyanu from Moldova and Prof. Abdel Makhlouf from Germany. Details related to the presentation of the monograph can be found at http://asm.md