*Muhammad Irfandi1,2, Mohammad Kemal Agusta2,3, Hermawan Kresno Dipojono2,3, Katsuyuki Fukutani1,4
(1. Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 (Japan), 2. Advanced Functional Materials Research Group, Institut Teknologi Bandung, Jl Ganesha 10, Bandung 40132 (Indonesia), 3. Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Bandung 40132 (Indonesia), 4. Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195 (Japan))
Keywords:Phase degradation, Cuprous oxide, Hydrogen, Hole trap states, Density functional theory