dr. J.E.M. (Jos) Haverkort - Expertise

Haverkort, dr. J.E.M.
Address :
Technische Universiteit Eindhoven
P.O. Box 513
5600 MB EINDHOVEN
Department :
Department of Applied Physics
Section :
Advanced Nanomaterials & Devices
Positioncategory :
Associate Professor (UHD)
Position :
Associate Professor
Room :
FLX 2.104
Tel :
+31 40-247 4205
Tel (internal) :
4205
Email :
J.E.M.Haverkort@tue.nl

Expertise

Biography

Research profile

Jos Haverkort investigates semiconductor nanowires for applications in solar cells and silicon-based light sources. His primary focus is on optical characterization of the nanowires. In the area of solar cells, the use of semiconducting nanowires embedded in a transparent polymer matrix allows for the production of cheap, versatile and very efficient devices. Nanowires feature a very high light extraction efficiency, allowing to achieve very high conversion efficiencies. His largest ambition is to develop a nanowire solar cell which is capable to re-direct all emitted photons back to the sun, to approach the ultimate conversion efficiency of more than 45%. The research group currently holds the world record in efficiency of nanowire InP solar cells (17,8%), which is a significant first step towards the ultimate efficiency flexible solar cell.

Haverkort's other ambition is to contribute to a silicon-based light source. Such a light source can be achieved by using hexagonal crystal phase SiGe (Hex-SiGe) which features a direct bandgap allowing to demonstrate efficient light emission. The final challenge is the development of a Hex-SiGe nanolaser, which would revolutionize the electronics industry by adding intra-chip and chip-to-chip communication at the speed of light - offering a significant reduction in energy consumption. Haverkort contributes to this topic through the optical characterization of Hex-SiGe nanowires as well as by serving as the project manager of the European SiLAS consortium, which is heading towards the demonstration of a SiGe nanolaser.

Academic background

Jos Haverkort studied Physics at Leiden University and obtained his PhD at the same university in 1987 with his thesis "Light-induced drift of Na in noble gases". Since then he has been a researcher at the Department of Applied Physics at Eindhoven University of Technology (TU/e), currently with the Advanced Nanomaterials and Devices research group. 

Affiliated with

· Institute for Photonic Integration

Research cooperation with

· AMOLF

· Oxford University

· Friedrich Schiller Universität Jena

· Universität Linz

· Technische Universität München

Partners in industry

· IBM

· Philips Lighting 

· ECN/Solliance