Petri Kärhä
Principal University Lecturer
T410 Dept. Electrical Engineering and Automation
Principal University Lecturer
Full researcher profile
https://research.aalto.fi/...
Email
petri.karha@aalto.fi
Postal address
Maarintie 8
02150 Espoo
Finland
Phone number
+358505968469
Research groups
- Metrology Research Institute, Senior University Lecturer
Publications
Spectral characterization of three wearable electronic ultraviolet radiation dosimeters
Leevi August, Gregor Hülsen, Juha Peltoniemi, Petri Kärhä, Erkki Ikonen
2026
Photochemistry and Photobiology
Best practices for measuring the performance and stability of indoor photovoltaic devices
Abhisek Chakraborty, Giulia Lucarelli, Vaibhav Singh, Jie Xu, Zeynab Skafi, Diksha Thakur, Francesco Di Giacomo, Gyanendra Shankar, Emanuele Calabrò, Francesca De Rossi, Osbel Almora, Peyman Amiri, Shinji Aramaki, Diego Bagnis, Tomiki Bannai, Christoph J. Brabec, Daniele Braga, Gregory Burwell, Francesca Brunetti, Aldo Di Carlo, Matt Carnie, Luigi Angelo Castriotta, Sergio Castro-Hermosa, Manuela Ciocca, Yong Cui, Janardan Dagar, Bruno Damien, Sergey V. Dayneko, Nutifafa Y. Doumon, Vida Turkovic, Karen Forberich, Marina Freitag, Feng Gao, Giulia Grancini, Zhanglin Guo, Behrang Hamadani, Mike Hayes, Jianhui Hou, Robert L. Z. Hoye, Stéphane Jouin, Marko Jošt, Petri Kärhä, Matthias Kauer, Thomas Kirchartz, George Koutsourakis, Shuuji Kuge, Monica Lira-Cantu, Ian Mathews, Morten Madsen, Matthias Auf der Maur, Tsutomu Miyasaka, David Müller, Shashank Priya, Erin L. Ratcliff, Andrea Reale, Makhsud I. Saidaminov, Frédéric Sauvage, Suraj Soman, Zhenchuan Tian, Marko Topič, Antonio Cabas Vidani, Paola Vivo, Kai Wang, Yuming Wang, Zhao-Kui Wang, Konrad Wojciechowski, Uli Würfel, Xueqing Xu, Mustafa Yaşa, Selçuk Yerci, Andrea Zampetti, Kui Zhao, Thomas M. Brown
2026
Nature Energy
Results of an interlaboratory comparison of adapted reference solar cells among nine metrological institutes
Afsaneh Eghbali Yeldagermani, Petri Kärhä, Erkki Ikonen, Ingo Kröger, Michael Rauer, S. Kasimir Reichmuth, Jochen Hohl-Ebinger, Gabriele Friesen, Flavio Valoti, Giovanni Bellenda, Yean San Long, Min An Tsai, Karsten Bothe, David Hinken, Diego Pavanello, Harald Müllejans, Fatima Mašić, Srđan Čalija, Vladimir Milojević, Ankit Mittal, Marcus Rennhofer, Stefan Winter
2026
Results in Engineering
Results of an International Comparison of Indoor Photovoltaic Measurements Among Seven Metrological Institutes
Afsaneh Eghbali, Petri Kärhä, Erkki Ikonen, Ingo Kröger, Yean San Long, Min An Tsai, Karsten Bothe, David Hinken, Özcan Bazkir, Jimmy Dubard, Pierre Betis, George Koutsourakis, James Blakesley, Daniel E. Parsons, Stefan Winter
2025
Solar RRL
Infrared-A (IR-A) modulates the p53 pathway and diurnal clock in human skin and subcutaneous adipose tissue in vivo
Iina Maria Häggqvist, Juha Jernman, Erna Snellman, Petri Kärhä, Rafael Pasternack, Timo Partonen, Piia Karisola
2025
Journal of Photochemistry and Photobiology B: Biology
Reaching a consensus on indoor photovoltaics testing
Robert L.Z. Hoye, George Koutsourakis, Marina Freitag, Zacharie Jehl Li-Kao, Thomas Österberg, Simon Aliwell, Mathieu Bellanger, Thomas M. Brown, Francesca Brunetti, Matthew J. Carnie, Abhisek Chakraborty, Giulia Grancini, Petri Kärhä, Matthias Kauer, Thomas Kirchartz, Chieh Ting Lin, Monica Lira-Cantú, Yean San Long, Senol Öz, Sonia R. Raga, Edgardo Saucedo, Paola Vivo, Shin Woei Leow, Konrad Wojciechowski, Andrea Zampetti, Ru Zhou, Simon Züfle, Gregory Burwell
2025
Joule
Measurement of temporal light modulation using a hyperspectral camera
V. Mantela, I. Harju, P. Kärhä, E. Ikonen
2025
Measurement Science and Technology
Evaluation of on-site calibration procedures for SKYNET Prede POM sun-sky photometers
Monica Campanelli, Victor Estellés, Gaurav Kumar, Teruyuki Nakajima, Masahiro Momoi, Julian Gröbner, Stelios Kazadzis, Natalia Kouremeti, Angelos Karanikolas, Africa Barreto, Saulius Nevas, Kerstin Schwind, Philipp Schneider, Iiro Harju, Petri Kärhä, Henri Diémoz, Rei Kudo, Akihiro Uchiyama, Akihiro Yamazaki, Anna Maria Iannarelli, Gabriele Mevi, Annalisa Di Bernardino, Stefano Casadio
2024
Atmospheric Measurement Techniques
Differential Spectral Responsivity of Solar Cells Measured with an LED Based Experimental Setup
Afsaneh Eghbali Yeldagermani, Erkki Ikonen, Petri Karha
2024
2023 Middle East and North Africa Solar Conference, MENA-SC 2023 - Proceedings
Infrared-A to improve mood: an exploratory study of water-filtered infrared-A (wIRA) exposure
Iina Maria Häggqvist, Petri Kärhä, Hannu Kautiainen, Erna Snellman, Rafael Pasternack, Timo Partonen
2024
Photochemical and Photobiological Sciences