A new technique for growing quantum dots has not only found a new, more efficient way to build a useful type of quantum dot, but also opened up a whole group of novel chemical materials for future researchers' exploration. Replacing organic solvents with molten salt lets researchers grow 'previously unimaginable nanocrystals.
A new technique for growing quantum dots has not only found a new, more efficient way to build a useful type of quantum dot, but also opened up a whole group of novel chemical materials for future researchers' exploration. Replacing organic solvents with molten salt lets researchers grow 'previously unimaginable nanocrystals.'
The team -- which included researchers from the University of Chicago, University of California Berkeley, Northwestern University, the University of Colorado Boulder, and Argonne National Laboratory -- achieved these remarkable results by replacing the organic solvents typically used to create nanocrystals with molten salt -- literally superheated sodium chloride of the type sprinkled on baked potatoes.
However, much of the previous research on quantum dots, including the Nobel work, was around dots grown using combinations of elements from the second and sixth groups on the periodic table, Rabani said. These are called"II-VI" materials.Materials found in the third and fifth groups of the periodic table are used in the most efficient solar cells, brightest LEDs, most powerful semiconductor lasers, and fastest electronic devices.
"Many eras in human history are defined by the materials humanity had available -- think 'Bronze Age' or 'Iron Age,'" Ondry said."In this work we have unlocked the ability to synthesize nearly a dozen new nanocrystal compositions which will enable future technologies."Justin C. Ondry, Zirui Zhou, Kailai Lin, Aritrajit Gupta, Jun Hyuk Chang, Haoqi Wu, Ahhyun Jeong, Benjamin F. Hammel, Di Wang, H. Christopher Fry, Sadegh Yazdi, Gordana Dukovic, Richard D.
Quantum Physics Materials Science Engineering And Construction Quantum Computing Nanotechnology Civil Engineering Spintronics
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