[14p-PA13-1~21] 6.3 Oxide electronics

[14p-PA13-19] Electrochemical formation and optical characterization of Cu₂O/GaN heterostructures

〇Yusuke Kumazaki¹, Sayaka Ohmi¹, Zenji Yatabe¹, Taketomo Sato¹ (1.RCIQE, Hokkaido Univ.)

Keywords:photocatalyst,electrochemistry,GaN

We fabricated Cu₂O/GaN heterostructures by electrochemical deposition for visible light responsive photocatalyst. We confirmed Cu₂O/GaN heterostructures were successfully formed by SEM and XRD. UV-Vis-NIR spectroscopy revealed that fabricated Cu₂O/GaN heterostructures could absorb visible light. In addition, photoelectrochemical measurements revealed photocurrents can be observed on Cu₂O/GaN electrodes under visible light, indicating Cu₂O/GaN heterostructures have a great potentials to achieve visible light responsive photocatalyst.