Presentation Information
[8a-N302-11]Methane Activation by Hot Carriers Generated in Vertical Nanosheet-Based Tunnel Junctions
〇Riku Konishi1, Ryo Nouchi1 (1.Osaka Metro. Univ.)
Keywords:
hot carrier,vertical tunnel junction,ruthenium oxide nanosheet
Recently, hot-carrier-based reactions have attracted considerable attention because they can be used to lower the reaction temperature. Hot carriers can be generated by applying a voltage across tunnel junctions. Such tunnel-junction-based reactions have been induced using scanning tunnelling microscope tips, which are localized just under the tips in most cases. We are currently pursuing enlargement of the reaction field by utilizing thin-film-based tunnel junctions with two-dimensional materials that can minimize the energy decay of hot carriers. While our challenges thus far have been based on in-plane tunnel junctions, in this study, vertical tunnel junctions that can enlarge the reaction field much more than in-plane junctions were fabricated using ruthenium oxide nanosheet thin films with atomically thin bodies. In this talk, we introduce successful induction of methane dissociation reactions using the vertical tunnel junctions.