Quantum Dot PV: Excitonic or not
The operating mechanism of quantum dot heterojunction has been an area of debate for years. In this paper, we studied the junction behaviour of PbS/ZnO quantum dot heterojunction. We have found that there is a transitional behaviour from excitonic to p-n junction upon photodoping of ZnO. The article was published in Nano Letters
Effect of side groups on polythiophenes
We have shown that vacuum thermal evaporation is a suitable method for the deposition of low solubility polymers. Planar solar cells based on PTh (side chain-free equivalent of P3HT) exhibit 70% increase in efficiency due to enhanced molecular order and charge extraction. The article was published in Organic Electronics.
Vacuum Deposited Oxide Solar Cells
Different heat treatments yield variations in the ratio of orthorhombic to tetragonal lead oxide that lead to different device performances, where devices with a higher content of orthorhombic PbO show higher power conversion efficiencies of up to 0.17%