1. Solar cell efficiency tables (version 15)
2. Solar cell efficiency tables (version 17)
3. Solar Cell Efficiency Tables (Version 20)
4. Pilot production of thin-film crystalline silicon on glass modules. Conf. Record, 29th IEEE Photovoltaic Specialists Conference, New Orleans, May, 2002.
5. Improvement of Voc upward of 600 mV/cell with CIGS-based absorber prepared by selenization/sulfurization. Conf. Proceedings, 17th EC Photovoltaic Solar Energy Conference, Munich, October, 2001; 989-994.