NIR range extension of photodetectors and solar cells

The bandgap of silicon limits its absorption to wavelengths under 1100 nm. This is a severe limitation for silicon photodetectors, which are the most common type. This also limits the efficiency of silicon solar cells, which count for 90% of the photovoltaic market. In this project you will use optical conversion materials for transforming NIR photons into photons that can be absorbed by the silicon. In this way, photodetectors can detect longer wavelengths and solar cells can absorb part of the NIR spectrum. The materials will be characterised and attached to the detectors/cells. Positive results will present the opportunity to prepare a scientific publication. For more information, please contact Dr. Jose Marques-Hueso (

Supervisor name: 
Dr. Jose Marques-Hueso
Supervisor and Deputy email addresses:

Project Type:

Project location: 
Earl Mountbatten building
Deputy name: 
Dr. Nick Bennett