Directory Database of Research and Development Activities in Sweden

Research News
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Our activities include many of the sub-areas within energy technology, from basic science to applied science, e.g. concerning indoor climate, Sustainable Building Systems.

The Division of Energy and Climate Studies (ECS) is the result of a new collaboration established between KTH and the Swedish Energy Agency. Research at ECS has an interdisciplinary character with a strong systems approach, linking issues related to energy technology and policy, climate change and sustainable development. This profile complements the more technical and experimental character of other divisions of the Department of Energy Technology at the School of Industrial Engineering and Management.

At present, ECS works with four defined research areas: bioenergy systems, rural electrification, urban energy systems, and energy and climate policy. We are also responsible for various courses in the area of energy policy and climate.

Well-equipped laboratories and access to powerful computers provide the foundation for activities which are on a very high level, and, which are recognized as such, internationally. Because of the excellence of our educational program, a number of projects are carried out in collaboration with, and with support from, industry and research organizations, within Sweden and also internationally.

ECS cooperates with the division of Applied Thermodynamics within the area of Urban Energy Systems. The project SitCit- Situations of Opportunity in the Growth and Change of three Stockholm City Districts, with the objective of identify potentials for increased energy efficiency in the urban environment, SitCit is managed by Applied Thermodynamics together with Environmental Strategies Research (fms) at the department of Urban Planning and the Environment, and has a continuous cooperation with ECS.

Sustainable bioenergy systems is a focus area of ECS research. In this research group bioenergy systems are studied from two perspectives, both the development of bioenergy infrastructure and also the usage of bioenergy in road passenger transport.

Our research focuses on silicon, silicon-germanium and silicon carbide semiconductors. The research programme is process and materials oriented but also includes devices and device physics. We conduct both fundamental and applied research. We study how defects and impurity atoms influence the material and electronic properties of semiconductors, and how this affects their use in modern devices. We try to \"look inside\" operating devices to study current flows, electrons and holes concentrations, or to measure local temperatures.

Silicon carbide (SiC) is a \"new\" semiconductor material with unique properties. It has a high bandgap and very high \"critical field strength\". It can be used in devices at very high temperatures and at very high voltages. It has therefore attracted considerable interest in the electric power industry. We are studying defects and impurities and seeing how they diffuse in the material. We are developing computer simulation tools to calculate the performance of devices, and a high voltage diode to investigate the voltage tolerance of materials. We have also developed a new optical technique to \"see\" charge-carriers \"inside\" operating silicon carbide devices.

The study of defects and diffusion in semiconductors – particularly in connection with ion implantation – has a long tradition in this laboratory. In particular the characterisation of transient diffusion has aroused much interest lately. The phenomenon imposes severe limitations for achieving ultra-shallow pn-junctions – a difficult problem in modern VSLI technology.

A new and very exciting project is in the field of nano-structures in silicon. Working on this very small scale, quantum physics comes into play and silicon acquires new characteristics – one may talk about silicon nanocrystals or quantum dots. As a result silicon becomes optically active; this could be used for light-emitting devices such as in displays. We are also using electron beam lithography to fabricate nano-structures, which can subsequently be made even smaller by means of oxidation or electrochemical etching. The goal is silicon handcrafting at a nanometre level.

At the micrometre level, three-dimensional structures can be built by means of deep etching of silicon (Deep Reactive Ion Etching), which we have used to make a high sensitivity imaging X-ray detector (for dental applications). A further development here is electro-chemical etching where pillars and pores can be produced with very large aspect (depth-to-width) ratios.

New materials are often essential to new technology, but a sound basic understanding of new and old materials is even more important. We are gaining such an understanding by combining theoretical research with experimental research. The Electrum laboratory is a world-leading resource for experimental materials research; this enables us to manufacture and analyze micro- and nano-scale materials – a field known as nanotechnology.

We conduct research into all kinds of materials, alloys and composites. Semiconductor materials are especially important are they are required for transistors, integrated circuits and lasers. These essential materials include indium phosphide, gallium arsenide, silicon and silicon carbide.

Latest Research Site

Department of Energy Technology (KTH)...	Energy and Climate Studies (KTH)...
School of Information and Communication Technology (KTH)...	Centre for Space and Plasma Physics...
Centre for Signal Processing...	Centre for Electromagnetic Engineering...

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Research Directory

Alternative energy (3)	Arts & Humanities (5)
Bioenergy (1)	Biotechnology (3)
Cancer (1)	Civil Engineering (1)
Computer Science (1)	Electrical Engineering (2)
Electronics (14)	Genetic research (1)
Industrial Engineering and Management (1)	Medical Science (14)
Microbiology (0)	Water (0)

Conference & Events

2010 IEEE 3rd International Nanoelectronics Conference (INEC)

2010 IEEE 3rd International Nanoelectronics Conference (INEC)
'To identify the paths between fundamental research and potential electronic, photonic, and biological applications.'

2010 2nd International Workshop on Security and Communication Networks (IWSCN)
'Instructions for Authors-
Authors should submit electronic versions of their papers in PDF format using the Swedish Nuclear Fuel and Waste Management Co., SKB
'There are gaps and deficiencies in legislation concerning spent fuel? What does the dual review to be made under the Nuclear Activities Act and the En'

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Latest Research jobs & grants

Professor in Molecular Plant Pest/Disease Interactions
'Subject area The subject area encompasses the investigation of molecular and cellular processes underlying interactions between plants and organisms '

Senior Research Positions
'Positions in following areas are announced: Analytical chemistry for a sustainable development; Bioinformatics; Biomedical engineering; Eukaryotic mo'

Experienced Researcher - Multiple Target Tracking in a Ground Sensor Network
'The project is about connecting a number of small sensors - could be tripwires, microphone arrays, seismic sensors, infrared motion detectors, small r'

Post-doctoral position available in Molecular Infection Biology (Innate Immunity)
'The position is available starting February 2010 for a period of 2 years. The successful candidate will have the opportunity to conduct her or his res'

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