works with two different types of photovoltaic devices:
1) Nanostructured silicon solar cells, where we are trying to optimize the power conversion efficiency of Si solar cells by different techniques such as edge passivation, Cu plating and laser doping.
2) Photovoltaic retinal implants for blind patients, where we are developing a prosthetic device that stimulates the retina electrically with the potential to restore some vision for the blind patients whose photoreceptors are not functioning.
Black silicon, nanotechnology, ‘eye’ implants
Solar cells, retinal prosthesis
Primarily fabrication of Si-based devices in a cleanroom.
Characterization such as electron microscopy (SEM), carrier lifetime analysis (Sinton WCT120), photoluminescence, current-voltage characteristics.
For the retinal implants, we measure neuron signals from fresh pig retinas (AUH) using multi-electrode arrays (MEA). Also, electrical stimulation with a pulse generator is possible.
Energy Conversion, Biomedical Materials, Sustainable Materials, Characterization of Materials Structure, Nanomaterials Engineering
