Risto Punkkinen
PhD
rpunk@utu.fi |
Semiconductor technology; electrical characterization of semiconductor materials; electrical characterization electronic components; sensor technology; diode based particle detectors
Semiconductor technology
Risto Punkkinen (born 1951) received his MSc degree in physics from the University of Turku,Finland in 1976 and received his PhD in physics from the University of Turku, Finland 1990. Since then he has worked at the university almost all the time mainly in teaching. He has retired in August 2021. After that he has worked as a part-time researcher in Academy of project Foresail and worked as a part-time teacher teaching basic courses in electronics.
My reseach has concentrated on semiconductor technology and measuring technology.
One object was to study the possiblity of manufacturing silicon-based laser.
In sensor technology, we succeeded in manufacturing a sensor on a silicon substrate that is capable of detecting very low hydrogen concentrations in air.
Our laboratory laboratory has produced and measured the main particle diode dectectors used in Academy’s Foresail satellite project to be used in space. Also the setup of the particle detector system PATE was finalized in the clean room.
Material science: trying to improve the properties of a MOSFET by using different materials in order to improve the mobility of electrons and holes.
Teaching has covered the basic and advanced courses in electronics and semiconductor technology and being responsible of them.
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- Hydrogen sensor of Pd-decorated tubular TiO2 layer prepared by anodization with patterned electrodes on SiO2/Si substrate (2016)
- Sensors and Actuators B: Chemical
- Toward the Atomically Abrupt Interfaces of SiOx/Semiconductor Junctions (2016)
- Advanced Materials Interfaces
- Observation of unusual metal-semiconductor interaction and metal-induced gap states at an oxide-semiconductor interface: The case of epitaxial BaO/Ge(100) junction (2015)
- Physical Review B
- Oxidation of the GaAs semiconductor at the Al2O3/GaAs junction (2015)
- Physical Chemistry Chemical Physics
- Effect of UV on wettability and bacterial adhesion of TiO2-nanotubes (2014)
- Dental Materials
- Electronics for the RADMON Instrument on the Aalto-l Student Satellite (2014) European Workshop on Microelectronics Education J Peltonen, H-P Hedman, A Ilmanen, M Lindroos, M Määttänen, J Pesonen, R Punkkinen, A Punkkinen, R Vainio, E Valtonen, T Säntti, J Pentikäinen, E Haeggström
- Hydrogen Sensing Properties of Anodically Synthesized Porous TiO2 Film Coated with Pd Thin Film and Its Mechanical Enhancement by the Bottom Electrode Configuratio (2014) Proceedings of European hydrogen energy conference Jongyun Moon, Hannu-Pekka Hedman, Marianna Kemell, Ermei Makila, Jarno Salonen, Aulis Tuominen, Risto Punkkinen
- Interference Colors of TiO2 Nanotube Arrays Grown by Anodic Oxidation (2014)
- Advanced Materials Research
- Synthesis and Characterization of Layered Tin Monoxide Thin Films with Monocrystalline Structure on III–V Compound Semiconductor (2014)
- Advanced Materials Interfaces
- The correlation between the interference colour and growth procedure of anodic titanium dioxide nanotube arrays (2014)
- Coloration Technology
- The Energetic Particle Telescope (EPT) on Board PROBA-V: Description of a New Science-Class Instrument for Particle Detection in Space (2014)
- IEEE Transactions on Nuclear Science
- The Energetic Particle Telescope: First Results (2014)
- Space Science Reviews
- Unveiling and controlling the electronic structure of oxidized semiconductor surfaces: Crystalline oxidized InSb(100)(1 × 2)-O (2014)
- Physical Review B
- A study of monitoring hydrogen using mesoporous TiO2 synthesized by anodization (2013)
- Sensors and Actuators B: Chemical
- Gas Sensor using Anodic TiO2 Thin Film for Monitoring Hydrogen (2012)
- Procedia Engineering
- Radmon – Radiaton monitor for Aalto-1 nanosatellite (2012) Physics Days 2012, Joensuu The 46th annual meeting of the Finnish Physical Society R Vainio, H-P Hedman, E Hæggström, J Peltonen, R Punkkinen, T Säntti, E Valtonen, A Ilmanen, M Mera, J Pentikäinen, J Perälä, J Sandhu, T Soukka
- Perspectives for provision of high quality space radiation environment data using the Energetic Particle Telescope (EPT) (2011) M Cyamukungu, S Benck, J Cabrera, G Grégoire, O Militaru, S Bonnewijn, J Maes, E Van Ransbeck, G Creve, J Desaedeler, C Semaille, E Valtonen, R Punkkinen, P Nieminen, A Menicucci, A Zadeh, G Santin, W Hajdas, I Britvitch
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