Janne Halme

University Lecturer
Department of Applied Physics

I am a researcher and educator on new energy technologies and solar energy with interests in interdisciplinary research, entrepreneurship education, sustainability, and innovation.

My main research field is solar energy physics and engineering, especially colored and printed photovoltaics. My specialty has been theoretical and experimental research on dye-sensitized solar cells – their fabrication on flexible substrates, optical and electrical impedance spectroscopy, device physics, accelerated aging testing, and degradation analysis. More recently, I started applying these skills to develop new photonic concepts for energy-efficient coloration of conventional solar panels in view of their application in solar architecture, art, and design.

In teaching, I am passionate about integrating innovation and entrepreneurship education in the science and technology curricula and researcher training. I developed and organized various integrated courses and an intensive summer school program for developing entrepreneurial mindset and skills in collaboration with Aalto Ventures Program. The courses were part of the Master’s Programme in Advanced Materials for Innovation and Sustainability (AMIS) which I coordinated and directed at Aalto in 2017 – 2022. I am also contributing to staff training as a part-time Innovation Agent by encouraging and advising researchers in their first steps of commercializing research results at the Department of Applied Physics. I am the recipient of 2020 SCI Teaching Award of the School of Science.

In a third dimension, I am exploring the liminal space between art and science. This is a journey that began in 2017 with artist Bartaku and a group of scientists at Aalto and lead to the creation of the first hand-painted solar panel, Blck Vlvt, the Painting Energies podcast, and the exhibition series Towardless: Plant-based Electrical and Art Energy.

You find my publications and other contributions behind the tabs Research output and Activities, and in ORCID or Publons.

Research expertise

Colored photovoltaics, textile solar cells, optical modeling, optics and photonics of solar cells, colorimetry, dye-sensitized solar cells, flexible solar cells, inkjet-printed solar cells, solar cell device physics, impedance spectroscopy, photoelectrolysis, photochemistry, corrosion, solar cell stability, accelerated aging testing, fuel cell characterization, transdisciplinary ArtScience.

Full researcher profile
[email protected]


  • New Energy Technologies, University Lecturer


Bio-inspired surface structures promote optical transmittance and hydrophobicity in cellulose-based films for self-cleaning perovskite solar cells

Hamidreza Daghigh Shirazi, Seyed Mehran Mirmohammadi, Seyede Maryam Mousavi, Magnus Markkanen, Janne Halme, Ville Jokinen, Jaana Vapaavuori 2024

Washable textile embedded solar cells for self-powered wearables

Elina Ilén, Farid Elsehrawy, Elina Palovuori, Janne Halme 2024

Super-Droplet-Repellent Carbon-Based Printable Perovskite Solar Cells

Cuc Thi Kim Mai, Janne Halme, Heikki A. Nurmi, Aldeliane M. da Silva, Gabriela S. Lorite, David Martineau, Stéphanie Narbey, Naeimeh Mozaffari, Robin H.A. Ras, Syed Ghufran Hashmi, Maja Vuckovac 2024

Efficiency limits and design principles for multi-junction coloured photovoltaics

Phoebe M. Pearce, Janne Halme, Jessica Yajie Jiang, Nicholas J. Ekins-Daukes 2024

Editorial : Bringing together the worlds of photosynthesis and photovoltaics: mechanisms, methods, and applications

Suleyman I. Allakhverdiev, Jean Manca, Alfred Holzwarth, Janne Halme, Raoul N. Frese, Roland Valcke 2023

Optimisation of knitted fabrics as visually concealing covers for textile-integrated photovoltaics

Farid Elsehrawy, Bettina Blomstedt, Elina Ilén, Elina Palovuori, Janne Halme 2023

Efficiency Limits for Multi-Junction Coloured Photovoltaics

Phoebe M. Pearce, Janne Halme, Jessica Yajie Jiang, Farid Elsehrawy, Nicholas J. Ekins-Daukes 2023 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023

Structural color coatings for single junction and multijunction solar cells - optical spectroscopy, colorimetric photography, and power loss analysis

Farid Elsehrawy, Konrad Klockars, Orlando J. Rojas, Janne Halme 2022 Optical Interference Coatings, OIC 2022

Sun-powered textiles: Designing energy-autonomous electrotextile systems with solar cells

Elina Ilen, Janne Halme, Elina Palovuori, Bettina Blomstedt, Farid Elsehrawy, Hanna Pelttari 2022

The Wardrobe of the Future

Elina Ilen, Janne Halme, Farid Elsehrawy, Elina Palovuori, Bettina Blomstedt, Pinja Helasuo, Jaakko Eskola, Zuzana Zmatekova, Linda Wederhorn, Maarit Salolainen 2022