Natcore Technology Inc (NTCXF)

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There are three key requirements to building the tandem cells, according to Dr. Dennis Flood, who is leading the research on this project.

First, the quantum dots have to be the right size. Second, they have to form a uniform layer when embedded in a thin film of silicon dioxide. And, finally, they all have to be arranged perfectly with an average inter-dot distance between any two quantum dots of less than 10 nanometers.

“The scientists have successfully met all three requirements,” according to a release from Natcore. “The researchers successfully embedded 20nm-diameter germanium quantum dots inside smooth, round shells of silica, dispersed the coated quantum dots on a surface with a simple spraying technique and coated the layer with a film of silicon dioxide using Natcore’s liquid phase deposition process.”