Quantum Materials Corp. (fka QTMM)

[TedJ]

As others have pointed out, not QD solar cells. Per NREL:

The quantum dot (QD) windows are unique in the way they generate energy. The QD-laminated glass absorbs sunlight, then the glow from the QDs is trapped in the glass by total internal reflection, similar to how a fiber optic cable guides light. The light is then guided to the edges where silicon solar cells are located. This approach is called a “luminescent solar concentrator.”

https://www.nrel.gov/news/program/2021/connecting-the-dots-to-enhance-energy-efficiency-workforce-and-low-carbon-buildings.html