Photoexcitations in molecular semiconductors
Lead Research Organisation:
University of Cambridge
Department Name: Physics
Abstract
Peter Budden will study the time evolution of photoexcited electronic states in molecular semiconductors, using transient optical spectroscopy with sub-picosecond time resolution. In particular, Peter will study the process of the splitting of the initial spin singlet excited state into a pair of spin triplet excitons in model materials and nanostructures for which the triplet exciton lies close to one half of the singlet exciton energy.
Organisations
People |
ORCID iD |
| Richard Friend (Primary Supervisor) | |
| Peter Budden (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509620/1 | 01/10/2016 | 30/09/2022 | |||
| 1803591 | Studentship | EP/N509620/1 | 01/10/2016 | 30/09/2020 | Peter Budden |
| Description | A new class of singlet fission materials, based on a dye called cibalackrot, was experimentally verified for the first time. Singlet fission is a process that can increase the efficiency of solar energy harvesting. This new class of molecules helped elucidate how excited-state aromaticity can be used predict if singlet fission will be viable in a given molecule, aiding the design of future singlet fission candidates. |
| Exploitation Route | The use of aromaticity to design singlet fission materials can be taken forward to design more efficient, more chemically stable, and higher band-gap singlet fission materials. There is a need materials of this nature to move towards integrating singlet fission with silicon photovoltaics. |
| Sectors | Energy |