Research

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The activities at the Institute of Semiconductor Electronics encompass research on nanoelectronics, photovoltaics and sensor devices. Our research aims at understanding the fundamental processes underlying the various electronic phenomena and their exploitation for e.g. ultra-low power field-effect transistor devices, highly efficient solar cells or highly-sensitive nano-electromechanical sensors. Integrating all these components on a single chip as illustrated in the figure below might make energy-autonomous electronic systems for smart homes, health care etc. possible. For experimental realizations of the various devices the Institute operates well-equipped laboratories including a clean room facility as well as electrical and optical characterization. In addition, our experimental work is supported by simulations relying either on commercially available or home-made simulation tools.

Nanoelectronics

Research on nanoelectronics devices is devoted to investigating novel low power field-effect transistor devices such as band-to-band tunnel FETs or transistors that operate at cryogenic temperatures. Experimental and simulation studies are carried out in various kinds of materials ranging from silicon and III-V to carbon nanotubes and 2D materials. Read More…

Photovoltaics

We investigate first and third generation solar cells based on crystalline silicon. The focus within our first generation research is on the optimization of the emitter and on alternative metal-semiconductor contacts. In addition, novel processing technologies such as laser-fired contacts etc. are also intensively studied. Our third generation solar cells rely on laterally contacted Si/SiO2 multi-quantum wells. Separating the quantization and electronic transport directions holds promise for the realization of high-efficiency cells. Read More…

Projects

Our research is mainly funded by the Deutsche Forschungsgemeinschaft and the Federal Ministry of Education and Research. In addition, we also obtain funding from foundations and companies for carrying out research projects. Read More…

Laboratory and Equipment

IHT operates a clean room facility jointly with partner institutes. In addition, tools for the fabrication of crystalline silicon solar cells are available, too. We also offer processes and equipment to external partners (see ACCENT for more information). In addition, the institutes houses well-equipped laboratories for optical and electrical characterization of semiconductor devices.  Read More…