AC Varonides, Current enhancement in p-i-n GaAs/Ge solar cells with tuned superlattices, embedded in the mid-region, 27th European Photovoltaic Solar Energy Conference and Exhibition, 24-28 September 2012, Frankfurt, Germany.
AC Varonides, 40.23% efficiency from tandem GaAs-Ge solar cells through embedded superlattice in the intrinsic region, 27th European Photovoltaic Solar Energy Conference and Exhibition, 24-28 September 2012, Frankfurt, Germany.
AC Varonides, High Efficiency Multijunction Solar Cells with Finely-Tuned Quantum Wells, Book chapter in Nanostructured Materials and Their Applications, Series: Nano-Science and Technology, (Logothetidis, Ed), pp. 85-102, Springer & Verlag, 2012.
AC Varonides, Solar cell current enhancement with embedded superlattices via thermionic emission, presented at the International Semiconductor Devices Research Symposium (ISDRS-IEEE & EDS sponsored), December 7-9, 2011, ISDRS 2011, College Park, University of Maryland, MD, USA.
AC Varonides, Higher efficiency solar cells with embedded short period tuned superlattices, presented at the NN11, Thessaloniki, Greece, 8-13 July 2011
AC Varonides, High Efficiency Solar Cells via Tuned Superlattice Structures: Beyond 42.2%, “SOLAR CELLS: New Aspects and Solutions, Chapter 15, pp. 325-340, LA Kosyachenko editor, INTECH Publishing 2011.
AC Varonides, Quantum PV via superlattices and quantum dots, presented at the International Summer School at the Nano-Tech conference (ISSNN10), Greece, July 2010.
AC Varonides, “High-Efficiency Lattice-matched Multijunction (not in tandem) Solar Cells via Tuned GaAs-Ge Quantum Wells, Proceedings of the 25th European PV Solar Energy Conference and Exhibition, Valencia, Spain, 2010.
AC Varonides, “Dynamics of Josephson Tunneling in Hybrid Nano-SIN Diodes: a device approach, Presented at the NN10, Thessaloniki, Greece, July 2010.
AC Varonides and RA Spalletta, “Design of Curriculum Modules for K-12, Undergraduate and Continuing Education in Sustainability and Renewable Energy", presented at the Third Annual Faculty Research Symposium, April 9, 2010, King's College, PA.
AC Varonides, RA Spalletta, “Improved short-circuit currents for high efficiency Quantum Well GaAs-Ge p-i-n solar cells”, presented at the Third Annual Faculty Research Symposium, April 9, 2010, King's College, PA
AC Varonides, “High Efficiency Solar Cells”, Summer Graduate School Lecture, 3d International Summer School on Nano-Sciences and Nano-Technologies, SS- NN09, July 2009, Thessaloniki, Greece.
AC Varonides, “Thermionic Emission and Diffusion Theory for Carrier Transport in Organic Solar Cells”, Invited Lecture at the 6th International Conference on Nanosciences and Nanotechnologies, 13-15 July, 2009, Thessaloniki, Greece.
AC Varonides, G Kaiser , P Chiappini, “WKB method and tunneling through GaAs/Ge superlattices for high efficiency solar cells”, Proceedings of the 34th PVSC Conference, Philadelphia, PA, June 2009.
AC Varonides, RA Spalletta, “III-V triple junctions and MQW fine-tuning at 1eV, in Synergy for high efficiency ( 40%) solar cells”, Proceedings of the 34th PVSC Conference, Philadelphia, PA, June 2009.
AC Varonides, “Full spectrum absorption and 1eV-tuning in a P - (AlAs/GaAs)-i - (GaAs/Ge) MQW – n (GaAs or Ge) high efficiency solar cell”, Proceedings of the 34th Photovoltaics Specialists Conference (PVSC), Philadelphia, PA, June 2009.