Institution: | 1. Institute of Photo-Electronics Thin Film Devices and Technique, Nankai University, Tianjin 300071, China;2. Plasma Technology Laboratory, Department of Chemical Engineering, Patras University, Patra 26500, Greece;1. Colorado Energy Research Institute, Colorado School of Mines, Golden, CO, USA;2. National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO, USA;3. Department of Physics and Astronomy, University of Toledo, Toledo, OH, USA;4. Department of Physics, Syracuse University, Syracuse, NY, USA |