Publication date: 15th May 2025
In recent years, CuInSeS/ZnS semiconductor quantum dots (QDs) have shown improvements that have unlocked new capabilities and end markets. These materials exhibit tunable photoluminescence in the visible and near-IR, with near unity quantum yield. They can have efficient broad emission, but also narrow emission, large Stokes shifts, and high optical extinction coefficients. Moreover, for applications in sunlight, their scalable synthesis (enabling low cost) and good stability, both in terms of field us and manufacturing, enable this class of dots to be deployed at scale in cost-sensitive applications like solar energy. UbiQD, a materials technology and QD manufacturing company spun out of Los Alamos National Laboratory, has pioneered the industrialization and scale-up of these materials, starting with critical end uses related to spectrum optimization for greenhouses and solar energy. This presentation will give an overview of how QDs are being used to enhance spectral quality of sunlight for improved photovoltaics (energy) and photosynthesis (food), which is driving a new order of magnitude of QD demand and production. We’ll discuss sunlight optimization and how the industry is adapting to delver in excess of 100 MT of QD solids per year for non-display applications.
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