ganrrlA 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).

 

Read more: Our paper highlighted by NanoTechWeb.org

tig kultura

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".

Source: http://www.tvkultura.ru/news.html?id=950688&cid=6

Read more: The lecture on nanotechnologies presented by Prof. Ion Tiginyanu

On February 27th the Jurnal TV Company has broadcast an interview with Prof. Ion Tiginyanu, vice-president of the Academy of Sciences of Moldova, coordinator of the MOLD-ERA FP7 project, and of the State Programme on Nanotechnologies and Nanomaterials.

http://www.jurnaltv.md/ro/news/nanotehnologii-in-moldova-340206

new book 2

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

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SPIE

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

Read more: SPIE Newsroom

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.

http://asm.md/?go=noutati_detalii&n=4239&new_language=0

Researchers in Moldova have fabricated nanometre-thin membranes of gallium nitride for the first time and investigated their nanostructure using electron microscopy. 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. GaN is also biocompatible, piezoelectric and resistant to ionizing radiation, while the nanostructured material could be good for making spintronics devices.

Read more: Our paper highlighted by NanoTechWeb.org: Nanoroof reveals dislocations