‘Electronic glue’ promises less expensive semiconductorsJune 12th, 2009 - 12:08 pm ICT by ANI
Washington, June 12 (ANI): Scientists at the University of Chicago and Lawrence Berkeley National Laboratory have developed an “electronic glue” that promises development of less expensive semiconductors.
The electronic glue could accelerate advances in semiconductor-based technologies, including solar cells and thermoelectric devices that convert sun light and waste heat, respectively, into useful electrical energy.
Semiconductors have served as choice materials for many electronic and optical devices because of their physical properties.
Commercial solar cells, computer chips and other semiconductor technologies typically use large semiconductor crystals.
But, that is expensive and can make large-scale applications such as rooftop solar-energy collectors prohibitive.
For those uses, engineers see great potential in semiconductor nanocrystals, sometimes just a few hundred atoms each.
Nanocrystals can be readily mass-produced and used for device manufacturing via inkjet printing and other solution-based processes.
But a problem remains.
The crystals are unable to efficiently transfer their electric charges to one another due to surface ligands-bulky, insulating organic molecules that cap nanocrystals.
The “electronic glue”, developed in Dmitri Talapin’s laboratory at the University of Chicago solves the ligand problem.
The team describes in the journal Science how substituting the insulating organic molecules with novel inorganic molecules dramatically increases the electronic coupling between nanocrystals. (ANI)
- Results of quantum dot research to pave way for more efficient solar cells - Jun 18, 2010
- Solar energy bouncing off pavements 'can melt ice, power streetlights' - Nov 10, 2010
- 'Quantum dots' technology to make solar cells more efficient, cheaper - Feb 21, 2011
- New discovery paves way for pollution-free electricity production - Oct 11, 2010
- 'Exotic' superconductor with metallic surface discovered - Nov 03, 2010
- Skin pigment could revolutionise medical electronics - Jun 28, 2012
- Light-induced magnetic effect 'can produce solar power without solar cells' - Apr 20, 2011
- New way to turn waste heat into power could make cars, factories more efficient - Oct 01, 2010
- New solar cell technology boosts efficiency of photovoltaics - Apr 30, 2011
- Energy yielded by organic solar cells is less than inorganic counterparts - Sep 20, 2010
- New finding could lead to better memory chips - Mar 16, 2011
- Scientists develop nanoscale 'Etch-a-Sketch' light sensor - Nov 15, 2010
- A cheaper, simpler way to tap solar energy - Dec 07, 2011
- Now, cheap, efficient, flexible solar cells made from nanopillars - Jul 10, 2009
- Mimicking photosynthesis key to inexpensive solar-powered jet fuel - Feb 21, 2011
Tags: berkeley national laboratory, choice materials, computer chips, electric charges, great potential, inorganic molecules, journal science, lawrence berkeley national laboratory, ligand, ligands, optical devices, organic molecules, scale applications, semiconductor crystals, semiconductor technologies, solar cells, solar energy collectors, sun light, thermoelectric devices, waste heat