New understanding of fundamental photochemistry in dye solar cells
Numerous mixes of chemical compounds have traditionally been tried in the electrolytes of dye-sensitized solar cells to improve their efficiency. How these chemicals interact with each other and the photoelectrode has received surprisingly little attention and are not well understood. Here we report results from a systematic study of two I–/I3– electrolytes and their additives using infrared and Raman spectroscopy together with quantum chemical calculations. The identified interactions paint an intriguing new photochemical landscape of the function of the dye-sensitized solar cells. The results of the study were recently published in Muhammad Imran Asghar, Janne Halme, Sampo Kaukonen, Niko Humalamäki, Peter Lund, and Jouko Korppi-Tommola. Intriguing Photochemistry of the Additives in the Dye-Sensitized Solar Cells. J. Phys. Chem C (2016). DOI: 10.1021/acs.jpcc.6b08235
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Art evokes feelings in the body
A new study from the University of Turku and Aalto University in Finland reveals that art has a powerful effect on people's bodies and emotions.
Professor Arja Karhumaa: ‘We need to better understand how texts are viewed’
Introducing our tenured professors: professor Arja Karhumaa explores the relationship between language and the visual form of a text –how a text looks at any given moment, and how it affects us as human beings.
The short film filmed in Aalto tells about a student's difficult choice
The shooting of the short film Myötätunto III, funded by Aalto University's Oasis of Radical Wellbeing project, began in Otaniemi on March 17th. The premier is on May 30th as a part of the Green Minds, Healthy Hearts – Social Sustainability Symposium in Aalto University's Harald Herlin Learning Center.