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Jos Haverkort investigates semiconductor nanowire applications in solar cells and silicon-based light sources, focusing primarily on the optical characterization of these nanowires. His research explores the use of semiconducting nanowires embedded in a transparent polymer matrix to produce low-cost, versatile, and efficient devices. These nanowires exhibit high light extraction efficiency, which is crucial for achieving superior conversion efficiencies. Haverkort's primary goal is to develop a nanowire solar cell capable of redirecting emitted photons back to the sun, aspiring for conversion efficiencies exceeding 45%. His research group currently holds the world record efficiency for nanowire InP solar cells at 17.8%, marking a significant advancement towards achieving flexible solar cell efficiency. Additionally, he aims to contribute to the development of silicon-based light sources, specifically using hexagonal crystal phase SiGe (Hex-SiGe), which possesses a direct bandgap that enables efficient light emission. One of his final challenges involves the creation of a Hex-SiGe nanolaser, which has the potential to revolutionize the electronics industry through enhanced intra-chip and chip-to-chip communication speeds, greatly minimizing energy consumption. Haverkort is also project manager for the European SiLAS consortium, focusing on the demonstration of the SiGe nanolaser, and is passionately dedicated to innovative research in this field.
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