This concentrator technology enables expensive semi-conductor material to be replaced with cheaper lens systems, and greater efficiency to be achieved. In his thesis, physicist Marc Steiner from the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg presented a way of increasing the efficiency of these concentrator solar cells even more.
The contacting of the semi-conductor layers plays a crucial role here, and Marc Steiner's new simulation program optimizes the structure and configuration of the metallic contact fingers. These calculations yielded unprecedented efficiency factors for concentrator solar cells. Marc Steiner will be awarded the 2nd Hugo Geiger Prize for his thesis "Minimization of serial resistance losses in III-V solar cells with the aid of a SPICE network simulation".
Genes play an important role in every organism, particularly where its development and adaptation to the environment are concerned. Modern sequencing technology means that genomes can now be quickly mapped. However, it is still not entirely clear which genetic program is running during which phase of growth. Gene expression – that is, the analysis of which genes are switched on at any given point in time, and which are not – can supply the relevant answers. This helps to differentiate cells, and to understand biological systems on a molecular level. The aim of the thesis "Global methods for the analysis of metatranscriptions on the single-cell level" by Christian Grumaz from the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB was to establish a new, straightforward procedure that gets by with small sample quantities and enables a high throughput.
"I was able to complete this plan successfully," says Christian Grumaz. The procedure is extremely sensitive, which means that it could potentially be applied in diagnostics, where biopsy material, for example, is usually only available in small quantities. A high throughput of samples is also possible, as parallel sequence technologies can be used. The analysis procedure is of interest for diagnosis, drug development and basic research. Christian Grumaz will be awarded the 3rd Hugo Geiger Prize for his paper.
Marc Steiner | EurekAlert!
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Studying how unconventional metals behave, with an eye on high-temperature superconductors
13.12.2018 | Princeton University
The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.
Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...
What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...
A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.
The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...
A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.
Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...
Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...
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14.12.2018 | Physics and Astronomy