Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Energy Gap in Focus

Dr. Christoph Koch, scientist at the StEM of the Max-Planck-Institute for Metals Research (Stuttgart/Germany) conducts experiments with the SESAM TEM.
Dr. Christoph Koch, scientist at the StEM of the Max-Planck-Institute for Metals Research (Stuttgart/Germany) conducts experiments with the SESAM TEM.

Abstract:
Successful in action: SESAM high performance microscope from Carl Zeiss in the Stuttgart Center for Electron Microscopy of the Max-Planck-Institute for Metals Research

Energy Gap in Focus

OBERKOCHEN, Germany and STUTTGART, Germany | Posted on October 20th, 2008

The special SESAM system, a high performance version of the LIBRA® 200 transmission electron microscope series from Carl Zeiss SMT, has been in use at the Stuttgart Center for Electron Microscopy (StEM) of the Max-Planck-Institute for Metals Research (MPI-MF) for the past 10 months. The StEM research group utilizes the system, among other things, for research work on plasmon resonances and opto-electronic semiconductor components. First results have been presented at the beginning of August during the international Microscopy & Microanalysis conference in Albuquerque (USA). "For the very first time, the MANDOLINE filter allows us to visualize the energy gap in semiconductor materials with high spatial resolution using energy-filtered imaging," explains Dr. Wilfried Sigle from the StEM.

The Head of the Stuttgart Center for Electron Microscopy, PD Dr. Peter A. van Aken, has many expectations for the future: "The energy resolution of the SESAM, which is absolutely unique in transmission electron microscopy, opens up new possibilities to the StEM researchers, especially in the low energy-loss area, by pairing the high spatial resolution of a transmission electron microscope (TEM) with an energy resolution otherwise only accessible to optical spectroscopy. In this way it is possible to examine, for example, local electronic properties of semiconductors or the vibration states of electrons on the surfaces of tiny metal particles."

New TEM generation
The special feature of this system is already evident in its name: SESAM stands for Sub Electronvolt Sub Angstrom Microscope, i.e. a transmission electron microscope (TEM) that combines high spatial resolution with high energy resolution. Its technical advantage lies in the design of a specially corrected spectrometer for energy filtering (MANDOLINE filter). In conjunction with an electrostatic electron monochromator, producing an appropriately monochromated electron beam, this makes it possible to capture series of energy-filtered images with very high spatial and energy resolution for the first time. This allows the production of maps of chemical element distributions with almost atomic resolution.

The MANDOLINE filter, whose electron-optical design is based on the development work of Professor Dr. Harald Rose, makes the SESAM a totally unique TEM. At the same time, it is part of a series of pilot systems with which Carl Zeiss SMT is introducing a wide variety of corrector and filter technologies for transmission electron microscopes specific to the required application. One example: In April 2007, after several years of development, the CRISP system was installed at the caesar Research Center in Bonn, Germany. Its development earned Carl Zeiss the coveted R&D 100 Award in 2007. CRISP is characterized by an electrostatic electron monochromator, an aberration-corrected illumination system and an imaging energy filter. The monochromator and the aberration corrector were developed by the Heidelberg company CEOS. In addition, a system known as PACEM featuring a phase plate module for biological applications is currently being built for the Frankfurt Max-Planck-Institute for Biophysics.

Dr. Markus Dilger, Managing Director in the Nano Technology Systems division of Carl Zeiss SMT, is convinced that SESAM is a further decisive breakthrough in the application of filter and monochromator technologies for high- performance electron microscopy: "In recent years, we have invested heavily in the enhancement of our TEM systems and, in cooperation with our demanding key customers and suppliers, have taken their development to the very limits of what is technologically feasible. It is now our goal to also offer these technologies for standard systems. The LIBRA 200 MC with an integrated monochromator module is an initial product of this type which we successfully launched on the market last year." Just recently, in the beginning of October 2008, the LIBRA 200 MC has been awarded with the EuroAsia IC Industry Award 2008.

####

About Carl Zeiss SMT Inc.
Carl Zeiss SMT utilizes its globally leading know-how in light, electron and ion-optical technologies to offer its customers in the manufacturing industry and R&D a broad portfolio of products, services and application solutions. The market-leading systems and solutions from Carl Zeiss SMT are used in mutually strengthening fields of application in nanotechnology such as semiconductor technology, materials research and the life sciences. The global customer community is constantly growing. As the innovation leader for lithography optics, as well as optical and particle-beam based inspection, analysis and measuring systems, Carl Zeiss SMT opens up new avenues for its customers in industrial manufacturing environments, quality assurance and industrial and university R&D. Together with its subsidiaries in Germany, England, France and the USA, the international group of companies has over 2,500 employees. In fiscal year 2006/07, Carl Zeiss SMT AG generated revenues of over EUR 1,000 billion. Carl Zeiss SMT AG is a wholly owned subsidiary of Carl Zeiss AG.

For more information, please click here

Contacts:
Markus Wiederspahn
Public Relations
Carl Zeiss SMT AG
Phone: +49 7364 20-2194
Fax: +49 7364 20-9206


MPI – Stuttgart:
MPI for Metals Research
PD Dr. Peter A. van Aken
Phone: 0711 689-3529

Copyright © Carl Zeiss SMT Inc.

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Tiny carbon nanotube pores make big impact October 29th, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Nanosafety research – there’s room for improvement October 29th, 2014

Imaging

A new cheap and efficient method to improve SERS, an ultra-sensitive chemical detection technique October 28th, 2014

Molecular beacons shine light on how cells 'crawl' October 27th, 2014

National Synchrotron Light Source II Achieves 'First Light' October 23rd, 2014

NIST offers electronics industry 2 ways to snoop on self-organizing molecules October 22nd, 2014

Announcements

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Tiny carbon nanotube pores make big impact October 29th, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Nanosafety research – there’s room for improvement October 29th, 2014

Tools

A new cheap and efficient method to improve SERS, an ultra-sensitive chemical detection technique October 28th, 2014

New Compact SIMS at 61st AVS | Visit us on Booth 311 October 28th, 2014

New nanodevice to improve cancer treatment monitoring October 27th, 2014

Haydale Secures Exclusive Development and Supply Agreement with Tantec A/S: New reactors to be built and commissioned by Tantec A/S represent another step forward towards the commercialisation of graphene October 24th, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE