Applied Physics Letters

Au-Cu2O Janus plasmonic catalysts on NiCoS heteroelectrodes achieve 16-fold enhanced OER activity

T Tongming Sun (School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China) J Junyi Chen Y Ying Gu (BGI Research, Shenzhen, China.) S Siqing Li R Ru Li (Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University) Y Yue Wu (Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.) Y Yanqiang Hu (School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China) Y Yanfeng Tang (School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China) M Minmin Wang

Abstract

We designed an Au-Cu2O Janus plasmonic heterostructure coupled with NiCoS nanosheets for oxygen evolution reaction (OER). The anisotropic Au-Cu2O interface enables directed charge transfer, yielding a 16× higher photocurrent than pure NiCoS at 660 nm (100 mW/cm2) and a reduced overpotential (175 vs 317 mV dark) at 100 mA/cm2.

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Article Details

Volume / Issue Vol. 127, Issue 2
Published July 14, 2025
ISSN 0003-6951
Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics
ISSN: 0003-6951 Physical Sciences

Authors (9)

T

Tongming Sun

School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China

J

Junyi Chen

Y

Ying Gu

BGI Research, Shenzhen, China.

S

Siqing Li

R

Ru Li

Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University

Y

Yue Wu

Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.

Y

Yanqiang Hu

School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China

Y

Yanfeng Tang

School of Chemistry and Chemical Engineering Nantong University Nantong Jiangsu China

M

Minmin Wang

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