Lysande Tripletter från Singlet Fission För Effektivare Solceller

Tidsperiod: 2018-07-01 till 2021-06-30

Projektledare: Victor Gray

Finansiär: Vetenskapsrådet

Bidragstyp: Bidrag för anställning eller stipendier

Budget: 3 150 000 SEK

The aim of this project is to enhance solar cell efficiencies by developing materials that can absorb one high energy photon and re-emit two photons of half the energy. This photon converting material will consist of an organic molecule anchored to an emissive semiconductor nanocrystal. The molecule is designed to undergo Singlet fission, i.e. it can convert a singlet excited state to two triplet excited states, each with half the energy. By coupling the molecule to an emissive nanocrystal one absorbed photon will be converted to two photons of half the energy. The applicant will be hosted by Dr. Akshay Rao at the University of Cambridge, Department of Physics for 24 months. The host group is a world leader in regards of studying Singlet Fission, with many important contributions to understanding the photophysical processes involved. This knowledge and the state of the art spectroscopic facilities at the host group will be important for the applicant when developing and characterizing the photon converting material. The material will be prepared by the applicant, and scrutinized using a range of spectroscopic techniques. Eventually the material will be combined with a solar cell to improve its efficiency, an important contribution to the field of photo-voltaics and society in large. For the last 12 months, the applicant will continue his research on singlet fission materials at Uppsala Univeristy, and apply it to photocatalytical applications.