DataVXACS Applied Materials & InterfacesPaper
journal article·2015-09-30Open access

Enhanced Photoelectrochemical Solar Water Splitting Using a Platinum-Decorated CIGS/CdS/ZnO Photocathode

Mukund G. Mali, Hyun Yoon, Bhavana N. Joshi, Hyunwoong Park, Salem S. Al-Deyab, Dong Chan Lim, SeJin Ahn, Carlo Nervi, Sam S. Yoon

ACS Applied Materials & Interfaces· Volume 7· Issue 38
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Source abstract

Abstract

A Cu(InGa)Se2 film was modified with CdS/ZnO for application to solar water splitting. Platinum was electrodeposited on the ZnO layer as a hydrogen evolution catalyst. The effects of the electroplating time and acidity level of the electrolyte on the photocurrent density were studied. The highest photocurrent density of -32.5 mA/cm(2) under 1.5 AM illumination was achieved with an electroplating time of 30 min at a pH of 9. This photocurrent density is higher than those reported in previous studies. The markedly high performance of the CIGS/CdS/ZnO photocathode was rationalized in terms of its type II cascade structure that facilitated efficient charge separation at the interface junction.
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Research context

Energy storageCatalysis & surfaces

OpenAlex topics: Copper-based nanomaterials and applications · Advanced Photocatalysis Techniques · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mechanical Engineering, Korea University, Seoul 136-713, Republic of Korea

School of Energy Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea

Petrochemicals Research Chair, Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia

Surface Technology Division, Korea Institute of Materials Science, Changwon 641-010, Republic of Korea

Photovoltaic Laboratory, Korea Institute of Energy Research, 71-2 Jangdong, YuseongGu, DaeJeon 305-543, Republic of Korea

Department of Chemistry and NIS, University of Torino, Via P. Giuria 7, 10125 Torino, Italy

Interuniversity Consortium of Chemical Reactivity and Catalyis, University of Bari, 70126 Bari, Italy

Funding

Korea University · National Research Foundation of Korea

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