1. Global
Research Center for Environment and Energy based on Nanomaterials
Science (GREEN), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
2. Photovoltaic
Materials Unit, National Institute for Materials Science (NIMS), 1-2-1
Sengen, Tsukuba, Ibaraki 305-0047, Japan