SOLAR CELL WITH AN INTERMEDIATE BAND COMPRISING NON-STRESSED QUANTUM DOTS
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United States of America Patent
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Issued Date -
Nov 6, 2014
app pub date -
May 10, 2012
filing date -
Jun 21, 2011
priority date (Note) -
Abandoned
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Abstract
An intermediate band solar cell is provided. The intermediate band material of the intermediate band solar cell consists of a collection of quantum dots of a semiconductor material that are immersed in a volume of a second semiconductor material. The first semiconductor material has a rock salt-type crystalline structure, and the second semiconductor material has a zinc blende structure. The quantum dots are produced by the immiscibility of the first semiconductor material in the second semiconductor material. A combination of the first and second semiconductor materials with a very similar lattice constant can therefore be selected such that the layer of intermediate band material does not have mechanical stress accumulation.
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