The team used a highly stable scanning tunneling microscope (STM) to create a transistor consisting of a single organic molecule and positively charged metal atoms, positioning them with the STM tip on the surface of an indium arsenide
QD technology based materials cover cadmium selenide, cadmium sulphide, cadmium telluride, indium arsenide
, graphene, and silicon.
One tool in their arsenal is molecular beam epitaxy, in which a thin stream of precursor molecules containing semiconducting materials--often indium arsenide
or gallium arsenide--is directed at a metal catalyst which controls crystal growth.
Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC), Berkeley, have successfully integrated ultra-thin layers of the semiconductor indium arsenide
onto a silicon substrate to create a nanoscale transistor with excellent electronic properties.
Through a series of calculations, the researchers conclude that mixtures of air and the alloy gallium indium arsenide
phosphide would create such a material.
Instead of using a germanium wafer as the bottom junction of the device, the new design uses compositions of gallium indium phosphide and gallium indium arsenide
to split the solar spectrum into three equal parts that are absorbed by each of the cell's three junctions for higher potential efficiencies.
The researchers fabricated the double quantum dots from extremely thin nanowires (about 50 nanometers, or a billionth of a meter, in diameter) made of a semiconductor material called indium arsenide
So, he and his team set out to find an exciton boost in quantum dots of indium phosphide and indium arsenide
The team is using a combination of indium arsenide
and indium arsenide
antimonide to build the superlattice structures.
The nanowire forests can be made of high-performance semiconductors, such as indium arsenide