Long-term stabilized high-density CuBi2O4/NiO heterostructure thin film photocathode grown by pulsed laser deposition

Jongmin Lee; Hongji Yoon; Seungkyu Kim; Sehun Seo; Jaesun Song; Byeong-Uk Choi; Seung Yo Choi; Hyunwoong Park; Sangwoo Ryu; Jihun Oh; Sanghan Lee

doi:10.1039/c9cc06092h

Long-term stabilized high-density CuBi₂O₄/NiO heterostructure thin film photocathode grown by pulsed laser deposition

Chem Commun (Camb). 2019 Oct 25;55(83):12447-12450. doi: 10.1039/c9cc06092h. Epub 2019 Sep 17.

Authors

Affiliations

¹ School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea. sanghan@gist.ac.kr.
² Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34113, Republic of Korea.
³ School of Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
⁴ Department of Advanced Materials Engineering, Kyonggi University, Suwon, Gyeonggi-do 16227, Republic of Korea.
⁵ Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34113, Republic of Korea and Graduate School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.

PMID: 31528870
DOI: 10.1039/c9cc06092h

Abstract

Harvesting sustainable hydrogen through water-splitting requires a durable photoelectrode to achieve high efficiency and long lifetime. Dense, uniform CuBi₂O₄/NiO thin film photocathodes grown by pulsed laser deposition achieved photocurrent density over 1.5 mA cm^-2 at 0.4 V_RHE and long-term chronoamperometric stability for over 8 hours.