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Research

Our mission is to innovate semiconductor devices with nanoscale design of high-performance materials to exploit their unique properties and conceive new, drastically more efficient devices that outperform the state-of-the-art.

Research

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The transistor developed by EPFL researchers can transistor can substantially reduce the resistance and cut the amount of heat dissipation in high-power systems © 2021 EPFL

New nanotransistors keep their cool at high voltages

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  • EPFL
Read moresur Tech Transfer.

Power converters play an essential role in electric vehicles and solar panels, for example, but tend to lose a lot of power in the form of heat in the electricity conversion process. Thanks to a new type of transistor developed at EPFL, these converters can perform at substantially improved efficiencies, especially in high-power applications.

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Transistor-integrated cooling for a more powerful chip

NewsEPFL

EPFL researchers have created a single chip that combines a transistor and micro-fluidic cooling system. Their research, which has been published in Nature, should help save energy and further shrink the size of electronic components.

A nanoscale device that can see through walls

NewsResearch

Researchers at EPFL have developed a nanodevice that operates more than 10 times faster than today’s fastest transistors, and about 100 times faster than the transistors you have on your computers. This new device enables the generation of high-power terahertz waves. These waves, which are notoriously difficult to produce, are useful in a rich variety of applications ranging from imaging and sensing to high-speed wireless communications. The high-power picosecond operation of these device also hold immense promise to some advanced medical treatment techniques such as cancer therapy. The team’s pioneering compact source, described today in Nature, paves the way for untold new applications.

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POWERlab Highlights

PhD Award given at the Swiss NanoConvention in 2021. Congratulations Luca!

The paper entitled “High-Performance Enhancement-Mode AlGaN/GaN Multi-Channel Power Transistors” presented by Luca Nela has received the Charitat Award at the 33rd International Symposium on Power Semiconductor Devices and ICs (ISPSD 2021), held in Nagoya, Japan. This is the second Charitat Award in a row for Luca. Congratulations!!!

Our paper on multichannel nanowire power devices was published in Nature electronics. Congratulations Luca and the entire team!

Our paper on embedded microchannel cooling was published in Nature and featured in many news outlets: 
Scientific American – Le Figaro – Le Temps – NRC – IEEE Spectrum – New Scientist – Nature podcast – Olhar Digital – RTS

Congratulations Remco and the entire team!

Our work on nanoplasma devices for ultra-fast electronics published in Nature was featured in Nature podcast [link]. Congratulations Mohammad and the entire team!

Awarded to Armin Jafari for the best paper at the IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020 ECCE Asia). Congratulations Armin!

Awarded to Elison Matioli for the development of Nanoscale devices for large-scale challenges: from efficient power electronics to bridging the terahertz gap [link]

Awarded to Jun Ma for the best PhD thesis in 2020 in the EDMI doctoral program. Congratulations Jun!

Awarded to Kerim Yildirim for the best master thesis in the fields of physics, electrical and mechanical engineering at EPFL. Congratulations Kerim!

Awarded to Remco van Erp at the 2020 International Workshop on Thermal Investigations of ICs and Systems (Therminic). Congratulations Remco!

Awarded to Luca Nela, as the first author and presenter of the best paper at the International Symposium on Power Semiconductor Devices and ICs. Congratulations Luca!

Awarded to Remco van Erp at the 2020 IEEE Thermal and Thermomechanical Phenomena in Electronic Systems conference. Congratulations Remco!

Awarded to Georgios Kampitsis to move to Imperial College in the UK. Congratulations George!

Awarded to Remco van Erp at the IEEE Applied Power Electronics Conference 2019, CA, USA. Congratulations Remco!

Latest publications

Direct high-temperature growth of single-crystalline GaN on ScAlMgO4 substrates by metalorganic chemical vapor deposition

A. Floriduz; E. Matioli 

Japanese Journal Of Applied Physics. 2022-04-01. Vol. 61, num. 4, p. 048002. DOI : 10.35848/1347-4065/ac54fe.

Detailed record

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Beyond 8 THz Displacement-field Nano-switches for 5G and 6G Communications

M. Samizadeh Nikoo; T. Wang; P. Sohi; M. Zhu; F. Qaderi et al. 

2022-03-09. 67th Annual IEEE International Electron Devices Meeting (IEDM 2021), San Francisco, CA, USA, December 11-16, 2021. p. 4.5.1-4.5.4. DOI : 10.1109/IEDM19574.2021.9720575.

Detailed record

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Intrinsic Polarization Super Junctions: Design of Single and Multichannel GaN Structures

L. Nela; C. Erine; A. Miran Zadeh; E. Matioli 

Transaction on Electron Devices. 2022-03-03. DOI : 10.1109/TED.2022.3151558.

Detailed record

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New Technologies to Enhance the Figures-of-Merit of GaN Power Devices

L. Nela / E. d. N. Matioli (Dir.)  

Lausanne, EPFL, 2022. 

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Hard and Soft Switching Losses in Power Converters: Role of Transistor Output Capacitance

P. S. N. Perera / E. d. N. Matioli (Dir.)  

Lausanne, EPFL, 2022. 

Detailed record

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Funding

Thank you to all funding sources that enable our research!

Thank you to all funding sources that enable our research!