Erik Johansson Group

An image collage with a sun, solar cells and the Angstrom Laboratory.

Perovskite, quantum dot and dye-sensitized solar cells

In my research group new solar cell devices based on solid state hybrid inorganic/organic nanoscale composites are constructed. We try to find new material combinations that are efficient and environmental friendly. We then use different advanced techniques to understand these devices from fundamental to applied level, and we also investigate different ways to prepare the solar cells on large scale. The results are then used to optimize the solar cell properties.

The solar cells may be divided into three different research areas: perovskite solar cells, quantum dot solar cells and dye-sensitized solar cells. The function of these types of solar cells is closely related and the results for one type of solar cell can often be used to improve and understand all three types of solar cells. 

Research projects

  • Solar cells on trucks for environmentally friendly transport
  • Perovskite solar cells (see below)
  • Quantum dot solar cells (see below)
  • Lead-free perovskite solar cells
  • Building integrated solar cells
  • Solar cells for transportation
  • Feasibility study about solar cells on ships for decreased environmental- and climate impact from shipping
Truck with solar cells

Quantum dot solar cells

Solution with quantum dots

The research on quantum dots for solar cells in our research group was noticed by Swedish Television, SVT, as part of the Nobel Studio program, in connection with the Nobel Prize in Chemistry 2023, which also deals with quantum dots.

See the feature on SVT play. (In Swedish, from 06:19 minutes into the program to 10:07.)

Perovskite - solar cells on the rise

Erik Johansson and Malin Johansson in the lab.

"They are testing a new way of catching the sun.

Perovskite is the solar cell researchers' new favorite material. In just a few years, it has emerged as a cheap alternative to silicon. But before perovskite can be used for the roof tops, several problems must be solved. One is spelled lead."

The magazine Forskning & Framsteg (Research & Progress) interviews Erik Johansson and writes about the new hot research area.

The full article can be found on Forskning & Framsteg's website (in Swedish).
(Image: Annika af Klercker, Forskning & Framsteg.)

Last modified: 2023-12-13