Empa - the place where innovation starts
Empa is the research institute for materials science and technology of the ETH Domain and conducts cutting-edge research for the benefit of industry and the well-being of society.
The Laboratory for Functional Polymers at Empa Dübendorf is offering a
PhD position (physics / materials science) on Organic and Hybrid Upconverters
Optical upconversion devices consist of a monolithic stack of a near-infrared (NIR) light photodetector and a visible light-emitting diode. Both components can be made with organic or organic-inorganic hybrid materials. These devices have recently emerged as candidates for next-generation NIR imaging, with various applications in information and communication technology, process control or machine vision systems. The research is focused on the development of intrinsic NIR selective narrowband photodetectors with a photoconductive gain and their system integration in upconversion devices.
The project addresses two challenges of current upconverters, namely the ability to detect NIR light of low intensity and in a very narrow wavelength region. The project goals are tackled with an interdisciplinary research approach that combines materials development, system integration, as well as steady-state and transient optical and electrical device characterization; a modelling part allows for deeper insight into the operation of this novel class of organic and hybrid optoelectronic devices.
The applicant must hold a master in physics, materials science or chemistry with a solid background in physics, ideally with previous experience in semiconductor physics and organic/hybrid thin film device fabrication. The project involves extensive scientific exchange and collaborations with partner laboratories in Brazil. The position is available upon agreement at the earliest possible date with a planned duration of 3 years. Proficiency of English and experience in scientific writing is beneficial. The candidate will academically be enrolled at École Polytechnique Fédérale de Lausanne (EPFL), Switzerland. Thesis advisor is Prof Frank Nüesch.
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