Depending on the material, they are used in biotechnology, energy generation, and electronics.
For display technology, their optical behavior, particularly photoluminescence, is of special interest. Quantum dots are tiny semiconductor crystals, between 2 and 10 nanometers in size—many times smaller than a human hair. They absorb light and re-emit it at a precisely defined wavelength. This property is used to improve image quality in modern displays.
OLED and LCD screens benefit from this technology.
As is often the case in electronics, new technologies are first introduced to the mass consumer market, where they are tested, before becoming established in industrial applications. Today, quantum dots have proven their effectiveness in both areas and contribute to a significant improvement in image quality.
The use of quantum dots offers several key advantages: the color gamut can be expanded by up to 40%, while color saturation and intensity are considerably increased. At the same time, it also improves the energy efficiency of displays.
In particular, integrating quantum dots into conventional TFT-LCDs represents a cost-effective alternative to AMOLED displays. Furthermore, these systems typically offer a longer lifespan.
