quantum-dots
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GeoSplit
GeoSplit is a high-tech oilfield services company that monitors oil, gas and water flows inside horizontal wells using quantum-dot marker-reporters and machine-learning interpretation. Instead of running mechanical logging tools downhole, operators deploy tiny fluorescent markers during well completion and later collect fluid samples that reveal, phase by phase, how each section of a well is producing - delivering years of production data without well intervention. Founded in 2013 and now headquartered in Dubai, the company serves upstream oil and gas operators seeking lower-cost, longer-term well diagnostics.
Nanosys
Nanosys is a Silicon Valley materials company, founded in 2001 in Milpitas, California, that makes quantum dots - man-made semiconductor crystals 2 to 8 nanometers across that convert light into precisely tuned, saturated color. Its Quantum Dot Enhancement Film (QDEF) helped bring wide-color-gamut displays to mass market, and its materials have shipped in more than 70 million televisions, monitors, tablets and phones. Nanosys holds one of the largest quantum dot patent portfolios in the world and is developing NanoLED (QDEL), a self-emissive display technology in which quantum dots make their own light. In September 2023 its quantum dot business was acquired by Japan's Shoei Chemical, which now operates the Nanosys brand and its Milpitas R&D labs.