Nikos PELEKANOS is professor and a senior member of the Microelectronics Research Group of IESL-FORTH in Heraklion, Crete in Greece. His project is entitled "nanowire innovative solar cells". It will develop the necessary technology and explore innovative concepts for the efficient use of III-V nanowires in photovoltaic devices. His main motivation is to combine the superior photovoltaic properties of GAas with the cost-reducing advantages of semiconductor nanowires, in order to demonstrate high efficiency solar cells with reduced cost.
The project involves:
- The epitaxial growth of new designs of III-V nanowire heterostructures on bare or pre-patterned silicon substrates
- Detailed optical and structural characterization
- Photovoltaic device processing based on wafers produced in the project. The main innovation aspects of the project are, (1) the development of piezoelectric engineering as a tool to design optimized III-V nanowire heterostructures with enhanced photovoltaic properties, and (2) the optimization of the nanowire array dimensions such as, diameter, height, and pitch, in order to maximize the absorption of the solar spectrum.
Nikos obtained his Ph.D in 1991 from Brown University, USA, where he worked on the optical properties of two-dimensional II-VI compound semiconductors. After a number of post-doctoral stays in various European laboratories, including the France Telecom research center in Lannion and the Max-Planck Institute in Stuttgart, he joined the Semiconductor Physics Laboratory of CEA-Grenoble from 1995 until 2001. He moved to the Microelectronics Research group at FORTH in 2001, and the Materials Science and Technology Department of the University of Crete in 2003.
He has coordinated three IST European assessment projects on quaternary nitride and Stark-tunable lasers, and two national PENED projects on "UV-emitters" and "Vertical cavity lasers". Nikos has recently obtained the "Solar Innovation 2010" award, for his proposal on low-dimensional semiconductor solar cells. At the time he has been laureate of his LANEF “Chair of Excellence”, he had published 160 publications in refereed journals and conference proceedings and holds 6 technical patents.