title: All-graphene oxide device with tunable supercapacitor and battery behaviour by the working voltage.
abstract: We propose a new type of all-graphene oxide device. Reduced graphene oxide (rGO)/graphene oxide (GO)/rGO functions as both a supercapacitor and a battery, depending on the working voltage. The rGO/GO/rGO operates as a supercapacitor until 1.2 V. At greater than 1.5 V, it behaves as a battery using redox reaction.
authors.affiliation: Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan. 124d9201@st.kumamoto-u.ac.jp yasumi@gpo.kumamoto-u.ac.jp.
authors.forename: Chikako
authors.initials: C
authors.lastname: Ogata
authors.forename: Ruriko
authors.initials: R
authors.lastname: Kurogi
authors.forename: Kazuto
authors.initials: K
authors.lastname: Hatakeyama
authors.forename: Takaaki
authors.initials: T
authors.lastname: Taniguchi
authors.forename: Michio
authors.initials: M
authors.lastname: Koinuma
authors.forename: Yasumichi
authors.initials: Y
authors.lastname: Matsumoto